########################################### Table of Contents ########################################### 1. Conferences 1.1. Campagna School of Basic Science 2026, Campagna, Italy 1.2. International Workshop on Topics in Cosmology, Rio de Janeiro, Brazil 1.3. KITP program: Gravitational Path Integrals and Large-N holography, Santa Barbara, USA 1.4. KITP conference: Horizons in Quantum Gravity, Santa Barbara, USA 1.5. KITP program: Merging Strong-field and Perturbative Gravity for the Precision Gravitational-Wave Era, Santa Barbara, USA 1.6. KITP conference: Nonlinearities in Strong Gravity: Perturbation Theory, Amplitudes, and Numerics, Santa Barbara, USA 1.7. From Quantum Gravity to Cosmology, Kashiwa, Japan 1.8. Universe Unravelled: Cosmic Strings at 50, Cambridge, UK 1.9. Symmetry 2027, Shanghai, China 1.10. New Horizons in Quantum Gravity, Les Houches, France 1.11. Quantum Gravity, Early Universe, Space-time and Theoretical Frontiers, Pisa, Italy 1.12. Modern Applications of Field Theory, Cargese, Corsica 2. Jobs 2.1. Postdoctoral position in Compact Objects in Alternative Gravity Theories, Madrid, Spain 2.2. Call for Women Researchers in Theoretical Physics, Santiago, Chile 2.3. 2 PhD positions on gravitational-wave astronomy, Palma, Spain 2.4. PhD position, General Relativity and Cosmology, Vienna, Austria 2.5. Post-Doc position in Mathematical Physics, Hong Kong 2.6. PhD position in Mathematical Relativity, Warsaw, Poland 2.7. Postdoctoral Researcher position in Non-Hermitian Gravitational Physics and Black Hole Gravitational Waves, Tokyo, Japan 2.8. Tenure-track research position in gravitational waves, Toulouse, France 2.9. PhD in gravitational physics, Crete, Greece 2.10. Full Professorship in Geometric Analysis, Tuebingen, Germany 3. News and Codes 3.1. The Thirty-First Release of the Einstein Toolkit ============================================== 1. Conferences ============================================== 1.1. Campagna School of Basic Science 2026, Campagna, Italy --------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/?p=31246 Starting: 2026-08-30 to 2026-09-05 Location: Campagna , Italy Additional Information: https://indico.dfa.unipd.it/event/1744/ Contact: associazione.sfcc[AT]gmail.com We are pleased to share the 2nd announcement of the Campagna School of Basic Science, which will take place in Campagna, nearby Salerno, Italy, from August 30 to September 5, 2026. The theme of this first edition is "Advanced Methods for the Physics of the Universe". Registrations are open and will close on July 14, 2026. The program will feature four Lectures on: Inflationary Cosmology - Robert Brandenberger (McGill University); Cosmological Correlators - Paolo Benincasa (Santiago de Compostela University); Amplitude Methods for Gravitational Waves - Carlo Heissenberg (IPhT, Saclay); Topological Data Analysis for Cosmology - Matteo Biagetti (RIT, Area Science Park Trieste); and the Public Lectures: Giordano Bruno Seminar - Thibault Damour (IHES, Bures-sur-Yvette). Juan Caramuel Seminars - Donato Bini (IAC-CNR) and Gabriele Gionti (Specola Vaticana) More details and information can be found at the indico page: https://indico.dfa.unipd.it/e/csbs2026 The Organizers: Luca Buoninfante, Sergio Cacciatori, Pierpaolo Mastrolia and Masahide Yamaguchi +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1.2. International Workshop on Topics in Cosmology, Rio de Janeiro, Brazil --------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/2026/07/08/international-workshop-on-top... Starting: 2026-09-02 to 2026-09-03 Location: Rio de Janeiro, Brazil Additional Information: https://cosmosecontexto.org.br/international-workshop-on-topics-in-cosmology... Contact: mnovello42[AT]gmail.com The Center for Advanced Studies in Cosmology (CEAC), hosted at the Brazilian Center for Physics Research (CBPF), proposes the organization of an International Conference on Cosmology to be held in September 2026, in the state of Rio de Janeiro. The event will address fundamental problems and recent advances in theoretical and observational cosmology, with emphasis on gravitation, quantum field theory in curved spacetimes and the physics of the early and late Universe. The conference will provide a high-level scientific forum for the exchange of ideas between internationally recognized researchers and the Brazilian scientific community, including graduate students and early-career scientists based in Rio de Janeiro. Topics: Fundamental aspects of the Theory of General Relativity, Nonlinear Electrodynamics and its cosmological consequences, Quantum Field Theory in Curved Spacetime, Propagation of field discontinuities and causal structures, Possible cosmic dependence of fundamental interactions, CP violation in cosmological contexts, Structure formation and large-scale evolution of the Universe, Astrophysical and cosmological tests of General Relativity, Tensions in cosmology, Next generation of cosmological surveys (Rubin LSST, Roman, Simons Observatory), Gravitational Waves as cosmological probes, The transient Universe. The scientific program will be supervised by the Scientific Committee composed of internationally recognized experts: This committee will be responsible for defining the conference scope, selecting invited speakers, and evaluating contributed presentations. The primary objective of the conference is to stimulate discussion on foundational and emerging topics in cosmology, strengthening the interaction between different theoretical frameworks and observational results. Scientific Committee: Edward Kolb, Ugo Moschella, Mario Novello, Sergio Joras, Carlos Romero, Martin Makler, Roland Triay, Murli Manohar, Vladimir Mostepanenko +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1.3. KITP program: Gravitational Path Integrals and Large-N holography, Santa Barbara, USA --------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/2026/07/11/kitp-progam-gravitational-pat... Starting: 2027-09-27 to 2027-12-17 Location: Santa Barbara, USA Additional Information: https://www.kitp.ucsb.edu/activities/pathintegrals27 Contact: jacobson[AT]umd.edu KITP program "Gravitational Path Integrals and Finite-N holography" will run Sept 27-Dec 17, 2027. The gravitational path integral (GPI), introduced by Gibbons and Hawking, has long been an enigmatic approach to quantum gravity. In recent years, however, it has become a central tool in the modern study of quantum gravity, providing both conceptual insights and increasingly precise computational control. This program will bring together experts from diverse subfields to explore recent advances in the formulation and application of the GPI, as well as its deep connections to finite-N effects in holography. By fostering interactions between researchers working on effective, UV-agnostic approaches and those developing UV-sensitive techniques, the program aims to bridge key gaps in our understanding. Through focused discussions and a dedicated conference, the program will address fundamental questions about black hole microphysics, quantum chaos, and the nature of spacetime. Interested researchers are invited to apply to participate. Program Application Deadline: Nov 2, 2026. For more information and application please visit https://www.kitp.ucsb.edu/activities/pathintegrals27 (An associated KITP conference, announced separately, will take place Oct 25-28, 2027.) +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1.4. KITP conference: Horizons in Quantum Gravity, Santa Barbara, USA --------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/2026/07/11/kitp-conference-horizons-in-q... Starting: 2027-10-25 to 2027-10-28 Location: Santa Barbara, USA Additional Information: https://www.kitp.ucsb.edu/activities/pathintegrals-c27 Contact: jacobson[AT]umd.edu KITP conference "Horizons in Quantum Gravity" will take place Oct 25-28, 2027. The gravitational path integral has become a practical tool for computing intrinsically quantum features of spacetime, including replica wormholes, Page curves, black hole entropy, spectral statistics, and near-extremal densities of states. At the same time, developments on supersymmetric indices, the Giant Graviton Expansion, fortuity, and BPS chaos have led to a rich set of precise probes of the microscopic Hilbert space of quantum gravity. This conference will focus on what this convergence teaches us more broadly about string theory and quantum gravity. The goal is to identify new directions towards a microscopic understanding of quantum black holes, applications to de Sitter horizons, and emergent Lorentzian spacetime dynamics beyond the large-N approximation. For more information and to register please visit https://www.kitp.ucsb.edu/activities/pathintegrals-c27 Registration deadline: Sept 26, 2027. (An associated KITP program, announced separately, will take place Sept 27-Dec 17, 2027.) +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1.5. KITP program: Merging Strong-field and Perturbative Gravity for the Precision Gravitational-Wave Era, Santa Barbara, USA --------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/2026/07/14/kitp-program-merging-strong-f... Starting: 2028-05-08 to 2028-06-22 Location: Santa Barbara, USA Additional Information: https://www.kitp.ucsb.edu/activities/PERFECTWAVE28 Contact: lcstein[AT]olemiss.edu This program will bring together experts across gravitational physics to address one of the central challenges of the coming decade: modelling gravitational waves with the precision required by next-generation observatories. As LIGO, Virgo, and KAGRA are upgraded, and as LISA, the Einstein Telescope, and Cosmic Explorer come online, gravitational-wave observations will become dramatically more sensitive. Extracting the full physics from these signals will require equally precise theoretical waveform models. Achieving this demands tools spanning perturbative methods, quantum-field-theory-inspired calculations, and large-scale numerical simulations, approaches that have achieved major successes but have largely developed in isolation. The program will bring together four key communities: black hole perturbation theory, which probes strong-field dynamics and ringdown; scattering amplitudes and effective field theory, which have produced high-order results for binary dynamics; numerical relativity, which provides fully nonlinear benchmarks; and data analysis, which tests theoretical predictions against observations. The goal is to develop waveform models spanning the full inspiral-merger-ringdown process, with systematic improvements and quantified uncertainties. Recent progress at the interfaces between these areas, including links between post-Minkowskian theory, numerical simulations, and perturbative ringdown calculations, makes this an especially timely effort. Interested researchers are invited to apply to participate. Program Application Deadline: Mar 7, 2027. For more information and application please visit the external link. (An associated KITP conference, announced separately, will take place May 30, 2028 - Jun 2, 2028,) +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1.6. KITP conference: Nonlinearities in Strong Gravity: Perturbation Theory, Amplitudes, and Numerics, Santa Barbara, USA --------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/2026/07/14/kitp-conference-nonlinearitie... Starting: 2028-05-30 to 2028-06-02 Location: Santa Barbara, USA Additional Information: https://www.kitp.ucsb.edu/activities/PERFECTWAVE-C28 Contact: lcstein[AT]olemiss.edu The strong-field spacetime near a compact-object binary is rich with information about gravitational interactions, yet capturing it faithfully remains a formidable challenge for theoretical models. This conference addresses that challenge by focusing on the critical interfaces between four approaches: matching weak-field analytical results to the strong-field regime, modelling nonlinearities across the inspiral, merger, and ringdown phases, and connecting theoretical waveform predictions to observational data analysis. It will bring together experts in black hole perturbation theory, ringdown physics, scattering amplitudes, effective field theory, numerical relativity, and data analysis for intensive exchange, with the aim of building the collaborations needed to extract the physics encoded in the next generation of gravitational-wave observations. For more information and to register please visit the external link. Registration deadline: Apr 30, 2028. (An associated KITP program, announced separately, will take place May 8, 2028 - Jun 22, 2028.) +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1.7. From Quantum Gravity to Cosmology, Kashiwa, Japan --------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/?p=31299 Starting: 2026-09-28 to 2026-10-02 Location: Kashiwa, Japan Additional Information: https://indico.ipmu.jp/event/520/ Contact: qg_cosmology-2026[AT]ipmu.jp We are pleased to announce the workshop: "From Quantum Gravity to Cosmology", 28 September - 2 October 2026, Kavli Institute for the Physics and Mathematics of the Universe, Kashiwa, Japan The workshop will bring together researchers in quantum gravity and cosmology to discuss major open questions at the interface between the two fields, from the challenges and tensions emerging within the Lambda-CDM model to recent progress in understanding the quantum origin of the universe and the fundamental physics underlying cosmological models. The program will include invited and contributed talks, poster sessions, and substantial time for discussion. To encourage exchange across different research communities, speakers will be encouraged to begin their presentations with an accessible introduction before moving to more specialized results and open questions. Registration is now open for both in-person and remote participation. The call for abstracts is also open to participants attending in person. Further information, including the list of invited speakers and the registration and abstract-submission forms, is available on the conference website: https://indico.ipmu.jp/event/520/ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1.8. Universe Unravelled: Cosmic Strings at 50, Cambridge, UK --------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/2026/07/15/universe-unravelled-cosmic-st... Starting: 2026-09-01 to 2026-09-05 Location: Cambridge, UK Additional Information: https://www.ctc.cam.ac.uk/activities/cosmic-strings/ Contact: gr-secretary[AT]damtp.cam.ac.uk In a seminal paper in 1976, Tom Kibble first proposed the notion of cosmic strings, and a rich legacy of research in the field has followed over the past fifty years. A central goal of this Universe Unravelled workshop will be to revisit unresolved questions about cosmic strings that underpin predictions for cosmological observables, ranging from gravitational wave signals to axion masses. The workshop is intended to prioritise discussion with ample time to develop collaborative directions that could advance these outstanding challenges. The workshop is intended to prioritise discussion with ample time to develop collaborative directions that could advance these outstanding challenges. In broad outline, the programme will include the following topics: Retrospective perspectives on cosmic strings: their legacy, observational signatures, and future prospects. Cosmic strings dynamics and scaling network evolution: Nambu-Goto and field theory simulations, and their correspondence with analytic modelling, including loops and radiative backreaction. Quantifying cosmic string observables: gravitational waves, dark-matter axions, the CMB, and other probes. Exploring cosmic string phenomenology: superstring networks, GUT-scale and EW strings, and superconductivity. Connections with other topological defects and recent developments. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1.9. Symmetry 2027, Shanghai, China --------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/?p=31322 Starting: 2027-06-25 to 2027-06-28 Location: Shanghai, China Additional Information: https://sciforum.net/event/symmetry2027 Contact: icsymmetry[AT]mdpi.com Dear all, We are thrilled to announce that Symmetry 2027 - The 6th International Conference on Symmetry will be held from 25 to 28 June 2027 in Shanghai, China. Following editions in Spain and the inaugural Asian gathering at Symmetry 2025 in Hangzhou, this second Asian edition represents a continued expansion of the conference's global scope. As a global metropolis, Shanghai provides an inspiring platform for academic exchange. Aligned with previous editions, the conference seeks to bring together academics, researchers, engineers, students and practitioners engaged in symmetry fundamentals, theoretical research, computational methods and cross-disciplinary innovation. Key areas of focus for this conference include, but are not limited to, the following: S1. Particle Physics and Nuclear Physics S2. Theoretical and Mathematical Physics, Astrophysics and Cosmology S3. Computer Science, Artificial Intelligence and Interdisciplinary Applications S4. General Topics in Symmetry We invite you to join us in Shanghai for what promises to be an enriching exchange of ideas and knowledge. Together, let us continue to unravel the mysteries of symmetry and its profound impact on our understanding of the natural world. Kind regards, Prof. Dr. Chengping Shen, Fudan University, China Prof. Dr. Jie Yang, Shanghai Jiao Tong University, China Prof. Dr. Sergei Odintsov, Institute of Space Sciences, Spain +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1.10. New Horizons in Quantum Gravity, Les Houches, France --------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/?p=31325 Starting: 2027-04-11 to 2027-04-16 Location: Les Houches, France Additional Information: https://indico.global/event/17435/ Contact: QGinLesHouches27[AT]gmail.com We are pleased to announce an advanced school on Quantum Gravity taking place next year in Les Houches, in France: New Horizons in Quantum Gravity: Boundaries, Observables and Quantum Reference Frames. April 11 to 16, 2027 Les Houches School of Physics https://www.houches-school-physics.com/ Dedicated to young researchers (Master, PhD, postdocs) in classical and quantum gravity, it covers advanced topics in general relativity (e.g. covariant phase space and boundary symmetries), recent developments in quantum gravity (e.g. observables and celestial holography) and the emerging interface with quantum reference frames. The program features lectures and dedicated time for discussions with the lecturers, Glenn BARNICH, Luca CIAMBELLI, Roberto EMPARAN, Flaminia GIACOMINI, Steve GIDDINGS, Monica PATE, Ana-Maria RACLARIU, Jonathan SORCE. The school will take place in the renowned Ecole de Physique des Houches in France, set against the spectacular Mont Blanc mountain range. Registration is now open! Early registration deadline: December 15, 2026 Find all the details on our website https://indico.global/event/17435/overview +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1.11. Quantum Gravity, Early Universe, Space-time and Theoretical Frontiers, Pisa, Italy --------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/?p=31344 Starting: 2026-09-23 to 2026-09-25 Location: Pisa, Italy Additional Information: https://agenda.infn.it/event/52744/ Contact: luca.parente[AT]pi.infn.it With unprecedented precision tests of Einstein's theory of gravitation and the ΛCDM model of the universe, a better theoretical understanding of fundamental theories is becoming increasingly important, in order to keep up with recent technological advancements. On the other hand, many questions remain open and lead us to look for extensions of these theories, such as the possibility of deviations from Einstein's relativity and from the Standard Model of Particle Physics and Cosmology. The aim of this conference is to bring together senior, junior and post-graduate researchers working at the interplay of Gravity and Cosmology, within the broader framework of Quantum Field Theory. Controversial and debated topics in modern theories of gravity, and new techniques in gauge and Generalized Symmetries theories, will be introduced with plenary talks from senior professors, followed by contributions from younger researchers. The final goal is to update participants on recent progress in modified gravity and cosmology, as well as their most recent Quantum Field Theory approaches, and potentially foster new collaborations within the community. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1.12. Modern Applications of Field Theory, Cargese, Corsica --------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/?p=31348 Starting: 2026-11-09 to 2026-11-13 Location: Cargese, Corsica Additional Information: https://indico.global/event/18150/ Contact: maibach[AT]thphys.uni-heidelberg.de Dear colleagues, We are pleased to announce the winter school "Modern Applications of Field Theory" taking place 9-13 November 2026 at the Institut d'Etudes Scientifiques de Cargese (IESC) in Corsica, France. Quantum field theory (QFT) is undergoing a remarkable renaissance, with transformative developments spanning high-energy physics, condensed matter, and quantum many-body theory. This school offers a coherent, pedagogically structured introduction to QFT as a unified framework connecting physics across widely separated energy scales. The program is built around four interlinked modules, each delivered by leading experts and complemented by research seminars: Renormalization Group and Effective Field Theory - low-energy actions, fixed points, symmetry principles Nonperturbative Methods and Emergent Phenomena - confinement, instantons, quantum many-body dynamics, cosmology Conformal Field Theory - scale and conformal invariance, applications to quantum field theory and statistical mechanics Holography and AdS/CFT - gravitational duals of strongly coupled theories, black hole physics and low-energy applications Lecturers: Johanna Erdmenger, Hugh Osborn, Ana-Maria Raclariu and Manfred Salmhofer. Speakers include Dario Benedetti, Andrea Cappelli, Lorenzo Di Pietro, Aaron Held, Benjamin Knorr, Giovanna Morigi, Giuseppe Mussardo (*) and Andreas Stergiou (*) [(*) to be confirmed]. A selected number of contributed talks among applicants is foreseen. The school is aimed at graduate students and early-career researchers in QFT and related fields of research. The registration fee of 430 EUR covers accommodation, breakfast, and breaks. A limited number of fee waiver is available upon request. Full details, timetable, and registration are available here: https://indico.global/event/18150/ Deadline of the application is 31 August, and acceptance will be communicated by 10 September. We look forward to seeing you in Cargese. The Organizers Nicolo' Defenu, David Maibach, Andrea Trombettoni, Hugh Osborn, Astrid Eichhorn +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ============================================== 2. Jobs ============================================== 2.1. Postdoctoral position in Compact Objects in Alternative Gravity Theories, Madrid, Spain ------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/2026/07/08/postdoctoral-position-in-comp... Deadline: 2026-07-17 Location: Madrid, Spain Additional Information: https://www.ucm.es/personal-contratado-de-actividades-cientifico-tecnicas-pl... Contact: fkhoo[AT]ucm.es The Compact Objects Group of the Department of Theoretical Physics at the Complutense University of Madrid welcomes applications from interested early-career candidates for a 2-year+ postdoctoral position in the group, to start on 1 October 2026. The group consists of Fech Scen Khoo, Jose Luis Blazquez-Salcedo, Luis Manuel Gonzalez-Romero, Francisco Navarro-Lerida, and PhD students. The main working objectives for the position entail: 1) Obtain stationary solutions for compact objects such as black holes, wormholes, and neutron stars in alternative gravity theories, and study the properties of the compact objects. 2) Study the properties of gravitational waves of compact objects in alternative gravity theories. Desired qualities: -Experience with analytical and numerical methods. -Related international publications. -Research stays outside of home university with resulted publication(s). -Proficiency in the following software (but not limited to): Maple, Matlab, Fortran, Python. -Proficiency in English. Deadline: 20 July 2026 (at 14:00 Madrid) - NEW! Contact of the group: Fech Scen Khoo (fkhoo[AT]ucm.es), Jose Luis Blazquez-Salcedo (jlblaz01[AT]ucm.es) +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2.2. Call for Women Researchers in Theoretical Physics, Santiago, Chile ------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/2026/07/08/call-for-women-researchers-in... Deadline: 2026-08-31 Location: Santiago, Chile Additional Information: https://investigacion.uss.cl/en/programa/doctorate-in-theoretical-physics/ Contact: doctorado.drft[AT]uss.cl Universidad San Sebastian (USS, Chile) invites women to express their interest in joining its research staff and to participate in the PhD Program in Theoretical Physics, https://investigacion.uss.cl/en/programa/doctorate-in-theoretical-physics/. This doctoral program, with its administrative head in Valdivia and its branch in Santiago, is structured through an academic alliance with the Centro de Estudios Cientificos (CECs). This invitation seeks to strengthen the research and training activities of the doctoral program by incorporating researchers with an active track record in theoretical gravitation and high-energy physics. In particular, the following qualifications will be especially considered: a) A scientific career that would allow the researcher to secure grants and lead research projects as principal investigator. b) The ability to train graduate students supervising or co-supervising master and doctoral theses. c) Capacity to collaborate in local and international research teams, and to teach graduate and undergraduate physics courses. Interested applicants should submit a brief letter of motivation, an updated curriculum vitae including the names and e-mail addresses of three references, a description of their main research lines and experience in graduate student training, if applicable, and a copy of the doctoral diploma or degree certificate. This material should be sent to doctorado.drft[AT]uss.cl by August 31, 2026. This call is part of Universidad San Sebastian's commitment to academic excellence, scientific collaboration, and to increase the participation of women in research and postgraduate programs in fundamental sciences. Accordingly, this call is open exclusively for women, as a concrete step to promote gender equity in STEM fields and to enhance women's participation in academia. For further information or inquiries about this call do not hesitate to contact doctorado.drft[AT]uss.cl. Contact: Almeira Sampson (doctorado.drft[AT]uss.cl) +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2.3. 2 PhD positions on gravitational-wave astronomy, Palma, Spain ------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/?p=31285 Deadline: 2026-09-18 Location: Palma, Spain Additional Information: https://edoctorat.uib.eu/en/doctorat/ Contact: cecilio.garcia[AT]uib.es We are offering two fully funded PhD positions at the Universitat de les Illes Balears (UIB) in Palma de Mallorca, Spain, in the field of gravitational-wave astronomy. There are two positions available: - PROJECT A (PI Dr. Ornella Juliana Piccinni): One project will focus on the development of novel data analysis methods for the search and characterization of continuous gravitational waves and dark matter candidates, with applications to current and future detectors. - PROJECT B (PI Dr. Cecilio Garcia-Quiros): The second project will focus on the modelling of gravitational-wave signals from compact binary systems and on the development of data analysis methods for the parameter estimation of these systems using current and next-generation gravitational-wave observatories. The successful candidate will join the GRAVITY research group at the IAC3, an internationally recognised team with a leading role in gravitational-wave science. The group is a major contributor to the LIGO-Virgo-KAGRA (LVK) Collaboration as well as the next generation of gravitational-wave observatories LISA and Einstein Telescope. As part of the GRAVITY group, the successful candidate will work within a vibrant international research environment, collaborating with scientists from leading institutions worldwide and contributing to cutting-edge research. For more information about the institute see https://iac3.uib.es/. For more information about the positions, eligibility requirements, and the application procedure please send a CV and a short statement of interest to ornella.piccinni@uib.es for PROJECT A and cecilio.garcia@uib.es for PROJECT B before 27 July. The deadline for submitting the formal application and all required supporting documents through the University application is 18 September 2026. The successful candidates are expected to start their contracts on 1 November 2026. Applicants should hold a bachelor's degree and a master's degree in Physics or a closely related field. Candidates who have not yet completed their master's degree are also encouraged to apply, provided that they obtain their master's degree before the start of the contract on 1 November 2026. By the contract start date, all successful candidates must have completed both degrees and accumulated at least 300 ECTS credits. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2.4. PhD position, General Relativity and Cosmology, Vienna, Austria ------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/?p=31305 Deadline: 2026-07-27 Location: Vienna, Austria Additional Information: https://jobs.univie.ac.at/job/University-assistant-predoctoral/1414256833/ Contact: david.fajman[AT]univie.ac.at Are you interested in fundamental questions in theoretical physics and in the mathematical structures underlying General Relativity and Cosmology? The Gravitational Physics Group at the Faculty of Physics of the University of Vienna invites applications for a PhD position in theoretical and mathematical gravitational physics. The doctoral project will focus on modern aspects of mathematical and numerical cosmology. The precise focus will be defined during the initial phase of the appointment in accordance with the aims of the position and the background of the successful candidate. Job vacancy starting: 01.09.2026 Working hours: 30,00 Classification CBA: par. 48 VwGr. B1 Grundstufe (praedoc) Limited contract until: 31.08.2029 Please apply directly on the University of Vienna's job portal "careers.univie.ac.at" Job ID: 5842 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2.5. Post-Doc position in Mathematical Physics, Hong Kong ------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/2026/07/16/post-doc-position-at-cityu-ho... Deadline: 2026-08-31 Location: Hong Kong Additional Information: https://www.cityu.edu.hk/stfprofile/areintje.htm Contact: m.reintjes[AT]cityu.edu.hk This is an announcement of a Post-Doc position in Mathematical Physics at the Department of Mathematics of the City University of Hong Kong in my group. My group works on Mathematical Physics, with focus on General Relativity and Relativistic Fluid Dynamics. I am looking for a strong candidate that ideally works in a similar direction. This is a research position without teaching requirements. Candidates must have completed a Ph.D. in Mathematics, Physics or related disciplines. Salary: 29.000 HKD (~ 3.700 USD, subject to roughly 10% tax) per month Duration of employment: 24 month Start: September 2026 or anytime thereafter How to apply: Please send your CV, publication list, short research statement, including contacts of at least two recommenders, via email to m.reintjes@cityu.edu.hk Due to time constraints I will only be able to respond to short-listed candidates. I'm looking forward to your application! Best wishes, Moritz Reintjes Assistant Professor Department of Mathematics City University of Hong Kong +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2.6. PhD position in Mathematical Relativity, Warsaw, Poland ------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/2026/07/20/phd-position-in-mathematical-... Deadline: 2026-08-07 Location: Warsaw, Poland Additional Information: https://www.cft.edu.pl/en/aktualnosci/we-are-looking-for-a-phd-student-schol... Contact: jkopinski[AT]cft.edu.pl We are seeking a PhD student to join the Center for Theoretical Physics of the Polish Academy of Sciences in Warsaw. The four-year position is part of the project "Geometry of Spacetime Asymptotics in General Relativity", funded by the National Science Centre, Poland. The successful candidate will work under the supervision of Jaroslaw Kopinski. Applicants should hold an MSc in physics or mathematics and have a background in general relativity and/or differential geometry. Experience with Mathematica is desirable. We also value independence, creativity, and an interest in developing expertise in modern conformal and projective geometry. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2.7. Postdoctoral Researcher position in Non-Hermitian Gravitational Physics and Black Hole Gravitational Waves, Tokyo, Japan ------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/2026/07/25/postdoctoral-researcher-posit... Deadline: 2026-08-24 Location: Tokyo, Japan Additional Information: https://academicjobsonline.org/ajo/jobs/32362 Contact: motohashi[AT]tmu.ac.jp The Department of Physics at Tokyo Metropolitan University invites applications for a postdoctoral researcher position in theoretical gravitational physics. The position is funded by the KAKENHI Challenging Research project "Foundations of Non-Hermitian Gravitational Physics and Exploration of Black Hole Gravitational Waves" (project period: April 2026-March 2029; Principal Investigator: Hayato Motohashi). Black-hole gravitational radiation can be viewed as waves in an open system. By combining this perspective with concepts of non-Hermitian physics developed in fields such as nuclear physics and condensed-matter physics, the project aims to establish a new interdisciplinary research area, "non-Hermitian gravitational physics." The successful candidate is expected to work with Prof. Motohashi on topics related to the project. Possible topics include black-hole perturbation theory, quasinormal modes, exceptional points, avoided crossings, resonant excitation, non-Hermitian physics, ringdown gravitational waves, and black-hole spectroscopy. Candidates with expertise in general relativity, black-hole perturbation theory, gravitational waves, mathematical physics, numerical relativity, scientific computing, or related areas are encouraged to apply. Prior experience with non-Hermitian physics is welcome but not required. The position is expected to start in November 2026 or as soon as possible thereafter, depending on administrative procedures and the candidate's situation. The position is funded until March 2029, subject to annual renewal, mutual agreement, and the regulations of Tokyo Metropolitan University. Applicants should submit: 1. Cover letter 2. Curriculum vitae 3. Publication list 4. Summary of previous research (1-2 pages) 5. Research statement describing future research interests (1-2 pages) 6. Two reference letters (to be submitted online by the reference writers on AcademicJobsOnline) Applications should be submitted through AcademicJobsOnline: https://academicjobsonline.org/ajo/jobs/32362 The application deadline is August 24, 2026 (23:59 EDT). Applications will be reviewed after the deadline. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2.8. Tenure-track research position in gravitational waves, Toulouse, France ------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/?p=31346 Deadline: 2026-09-02 Location: Toulouse, France Additional Information: https://emploi.cnrs.fr/Offres/CPJ/CPJ-2026-024/Default.aspx?lang=EN Contact: nicola.tamanini[AT]l2it.in2p3.fr Summary of the scientific project The first detection of gravitational waves (GWs) by the LIGO-Virgo collaboration in 2015 was made possible by advances in laser interferometer detectors and the theoretical and numerical development of associated data analysis methods. This achievement marked the beginning of a new type of astronomy, which to date has detected over 300 signals from black hole and neutron star mergers. It promises further exceptional discoveries through the improvement of current detectors (LIGO, Virgo) and the deployment of next-generation detectors (LISA, ET). The scientific project of this Junior Professorial Chair relies on the use of this new type of data to uncover several mysteries of the Universe, such as the state of matter in neutron stars, the expansion rate of the Universe, the nature of dark energy, or the validity of general relativity in extreme regimes. Summary of the teaching project At the Faculty of Science and Engineering of the Universite' de Toulouse, the majority of teaching hours are delivered at the Bachelor's (Licence) level. In physics, the teacher-researchers require support in both "core" disciplines (e.g., mechanics, electromagnetism, optics) and "related" disciplines (e.g., mathematical and numerical tools). The development of new data analysis algorithms and numerical simulations is a specialty of the L2IT, with mathematical and numerical tools at the heart of the laboratory's work. Contributing to these courses is particularly motivating for the L2IT, as they provide an opportunity to introduce students to its research fields. Additionally, the recruited individual will be able to contribute to teaching the physics of the infinitely large (general relativity, astrophysics, data analysis methods) within the dynamic Master's programs that focus on the science of the Universe. Profile Required Holders of a doctorate or a PhD or equivalent degree or applicants who have gained scientific qualifications or carried out scientific work deemed to be of an equivalent level.There is no restriction on the age or nationality of applicants. All CNRS positions are accessible to people with disabilities, with special arrangements for tests made necessary by the nature of the disability Host Lab Strategy The Laboratoire des 2 Infinis - Toulouse (L2IT), established in 2020, focuses on the study of the two infinities-the infinitely large and the infinitely small-and the phenomena that govern them, as well as the connections between the two. This includes, for example, the study of the Higgs boson and its role in the evolution of the Universe, or the emission of gravitational waves (GWs) and their propagation. The L2IT's distinctive feature is its specialization in scientific data modeling and analysis. In this field, gravitational waves present unique challenges, such as data dominated by numerous overlapping signals and noise. The recruited individual will advance these topics, thereby strengthening the emerging L2IT team. The Toulouse site already has a strong track record in the design of space-based gravitational wave detectors and the study of astrophysical objects that emit gravitational waves. This chair will forge strong collaborations while bringing the L2IT's specific research perspective to the forefront. Institution Strategy The development of gravitational wave astronomy is at the heart of the CNRS's scientific priorities. The CNRS, together with INFN (Italy), initiated the Virgo project as early as 1991 and has been deeply involved in instrumental developments for over twenty years. These investments led to the first detection in 2015. And more than 300 sources have been detected since. This new messenger allows us to study the Universe from a dynamic perspective of mass and provides complementary information to data obtained by electromagnetic observatories. Current observatories have transformed our understanding of the phenomena at play in the most massive objects, enabling their use as probes for cosmology and the study of strong-field gravity. The next generation of instruments, including the European Einstein Telescope (ET) and the space-based LISA detector, will allow us to observe a very large fraction of the Universe, all the way back to the formation of the first objects. The CNRS plays a major role in these studies, with over a hundred scientists and as many engineers involved in this field. The proposed junior professorial chair aligns with this momentum, reinforcing the CNRS's efforts and supporting the exploitation of these observatories. International Strategy The past decade has marked the beginning of a new era in cosmology and astrophysics. Indeed, the first detection of gravitational waves (GWs) has opened a new window on the Universe, providing previously inaccessible insights. This breakthrough has sparked significant global efforts to exploit these new observations, particularly in Europe, the United States, Japan, China, and India, reflecting the worldwide enthusiasm for future discoveries in cosmology and fundamental physics. The recruited individual will be a member of the international Virgo collaboration, which operates one of the three currently active ground-based GW detectors. They will also join the LISA consortium, which is preparing the only space-based mission for GW detection: the European Space Agency's (ESA) LISA mission, with NASA as a major junior partner. Their involvement will bring significant international visibility to both the L2IT and the Universite' de Toulouse. Open Science The CNRS is developing a strong policy in favor of open science. Open science consists of making research results "as accessible as possible and closed as necessary". As such, the CNRS aims to make 100% of the texts of publications resulting from the work of its laboratories accessible , in particular through deposit in HAL. The data produced must also be made available and reusable, except for specific restrictions. In addition, the guiding principles of individual evaluation have been revised in accordance with the DORA declaration, to be more qualitative and to take into account all facets of the researcher's profession. Science and society The relationship between science and society is now recognized as a full dimension of scientific activity. The project will develop this dimension in synergy with all the partners. The resulting research work will contribute to informing public decision-making. Participatory science initiatives may be initiated with actors from the project's socio-economic and cultural eco-system. Scientific dissemination The dissemination of the results will be done through world-class scientific productions: publications, patents, software... In addition, the results will be communicated to various targets such as scientific communities, media, decision makers, general public, schools, etc., with an adapted calendar. Specific tools may be developed such as websites, newsletters, meetings, international symposia, summer schools and conferences. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2.9. PhD in gravitational physics, Crete, Greece ------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/2026/07/31/phd-in-gravitational-physics/ Deadline: 2026-08-17 Location: Crete, Greece Additional Information: https://users.physics.uoc.gr/~porfyriadis/jobs.html Contact: porfyriadis[AT]physics.uoc.gr We invite applications for a PhD position in theoretical and mathematical gravitational physics. The doctoral project is expected to start in Fall 2026 and will focus on formal but fundamental aspects of black hole physics. Funding for this position is provided by a synergy grant between the Institutes of Astrophysics (PI Porfyriadis) and Applied and Computational Mathematics (PI Fournodavlos) at the Foundation for Research and Technology - Hellas (FORTH) in Heraklion, Crete. The successful applicant will be enrolled in the PhD program of the Department of Physics at the adjacent University of Crete and, in addition to the above Institutes, the PhD student will also join the Crete Center for Theoretical Physics (CCTP). Between the three institutes, the student will be part of an international research environment that includes numerous physicists and mathematicians with interests in gravitational physics that range from theoretical and observational astrophysics, to holography and string theory, to PDE analysis of the Einstein equations. Applicants must hold a Bachelors and/or Masters degree in physics, mathematics or a related area. The successful candidate will have an excellent academic track record. A graduate-level course in General Relativity is considered an important advantage. Interested candidates should send their CV, their university transcripts, and a statement of research experiences/interests (max 2 pages) in a single email to the following address: phd-apps-2026[AT]physics.uoc.gr. Letters of recommendation are not required at this stage. Review of applications will begin on August 17, 2026 and continue until the position is filled. For more information, see: https://users.physics.uoc.gr/~porfyriadis/jobs.html +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2.10. Full Professorship in Geometric Analysis, Tuebingen, Germany ------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/2026/08/01/full-professorship-in-geometr... Deadline: 2026-09-16 Location: Tuebingen, Germany Additional Information: https://uni-tuebingen.de/en/university/careers/newsfullview-job-advertisemen... Contact: cederbaum[AT]math.uni-tuebingen.de The Department of Mathematics of the Faculty of Science at Tuebingen University invites applications for the position of Professor (W3) in Geometric Analysis (m/f/d) with starting date April 1, 2027. The successful candidate is expected to independently represent the field of Geometric Analysis in both research and teaching and to have an outstanding, internationally recognized research profile. The research activities should allow opportunities for collaboration within the Department of Mathematics and other departments at the University of Tuebingen, particularly in the field of Mathematical General Relativity. Aside from research, the professorship will also play a vital role in the teaching of the bachelor's and master's programs in the department of mathematics and will represent the field of analysis in teaching on a broad scale. The successful candidate is expected to actively participate in joint externally funded projects within the Department of Mathematics and related departments at the University of Tuebingen, as well as to contribute appropriately to the Department of Mathematics' teaching responsibilities. Furthermore, appropriate participation in the academic self-governance of the Department of Mathematics and the Faculty of Science is expected. Required qualifications include a PhD or equivalent degree as well as postdoctoral qualifications and teaching experience equivalent to the requirements of a full professorship. The University of Tuebingen is committed to equity and diversity and actively promotes equal opportunities. Female academics, in particular, are explicitly invited to apply, as are applicants from outside Germany. Applications from equally qualified candidates with disabilities will be given preference. General information on professorships, hiring processes, and the German academic system can be found here: https://uni-tuebingen.de/en/213700 Please submit your full application through the application site of the University of Tuebingen at https://berufungen.uni-tuebingen.de by 16th September, 2026. Questions concerning the call for applications and the application portal can be directed to the Dean of the Faculty of Science at the University of Tuebingen, Professor Dr. Thilo Stehle (career[AT]mnf.uni-tuebingen.de). +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ============================================== 3. News and Codes ============================================== 3.1. The Thirty-First Release of the Einstein Toolkit ------------------------------------------------------------ Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/2026/07/11/the-thirty-first-release-of-t... Additional Information: https://einsteintoolkit.org/about/releases/ET_2026_05_announcement.html Release Announcement Click here to read the announcement in HTML (with hyperlinks): https://einsteintoolkit.org/about/releases/ET_2026_05_announcement.html We are pleased to announce the 31st release (code name "Hypatia") of the Einstein Toolkit, an open-source, community-developed software infrastructure for relativistic astrophysics. New thorns in this release: * Cottonmouth (CottonmouthBSSNOK4m, CottonmouthZ4c4m, CottonmouthGaugeWaveID, CottonmouthLinearWaveID) -- A new suite of GPU-accelerated spacetime evolution thorns for CarpetX. * CanudaX (CanudaX_BSSNMoL, CanudaX_NPScalars, CanudaX_ExactID) -- A new GPU-accelerated BSSN spacetime evolution suite for CarpetX, * TwoPuncturesX -- TwoPunctures for CarpetX. * ET_BHaHAHA -- A new apparent horizon finder. A new gallery example: A BHNS star merger matching GW230529. Updated thorns and components: * CarpetX -- Added support for integer and complex grid array and scalar types; pinned Particles in interpolation. * GRHayL -- Added Noble2D con2prim for tabulated equations of state; and tabulated EOS reader; * GRHayLHD/GRHayLHDX -- Uses a new tabulated EOS reader. * NewRadX -- Added support for CapyrX multipatch grids. In addition, bug fixes accumulated since the previous release. The Einstein Toolkit is a collection of software components and tools for simulating and analyzing general relativistic astrophysical systems. The Einstein Toolkit also contains a 1D self-force code. The Einstein Toolkit uses a distributed software model and is maintained by staff and faculty from several institutions and host weekly meetings open to anyone. The Einstein Toolkit is primarily supported by NSF 2411068 and also by NSF 2004157/2004044/2004311/2004879/2003893/2114582/2227105. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++