########################################### Table of Contents ########################################### 1. Conferences 1.1. New Trends in First Quantisation: Field Theory, Gravity and Quantum Computing, Bad Honnef, Germany 1.2. Gravitational Wave Cosmology, Brussels, Belgium 1.3. EMRI Search and Inference within the LISA Global Fit, Paris, France 1.4. PiTP: Gravitational Waves from Theory to Observation, Princeton, NJ, USA 1.5. 2nd Workshop on Self-Force and Amplitudes, Southampton, UK 1.6. APCTP Workshop on Gravitational Waves 2025, Taipei, Taiwan 1.7. Workshop on Gravitational Waves Detection, Baton Rouge, LA, USA 1.8. From Puzzles to New Insights in Fundamental Physics, Campagna, Italy 1.9. Tales of Gravity, Nottingham, UK 1.10. Caltech Relativistic Astrophysics Summer School, Pasadena, CA, USA 1.11. The 11th Conference of the Polish Society on Relativity, Wroclaw, Poland 1.12. The 5th Meeting on Gravitational Wave Science in Scandinavia, Copenhagen, Denmark 1.13. Octonions, standard model, and unification (online) 1.14. IOP Gravitational Physics Annual Meeting - Analogue Gravity: Theory and Experiment, London, UK 1.15. 24th Eastern Gravity Meeting, Durham, NH, USA 1.16. Black Holes, Neutron Stars, and Gravitational Waves @ Black Sea, Varna, Bulgaria 2. Jobs 2.1. Several postdoc and PhD positions in Einstein Telescope instrumentation and data analysis R&D, various sites, The Netherlands 2.2. Postdoc position in "Theoretical Multi-messenger Astrophysics", Hamburg, Germany 2.3. PhD Position on multi-messenger gravitational wave lensing, Louvain, Belgium 2.4. Another PhD position in Quantum Gravity, Nijmegen, The Netherlands 3. News 3.1. New textbook: "Primordial Black Holes" 3.2. Living Reviews in Relativity: "Primordial black holes and their gravitational-wave signatures" 3.3. SemiClassical gravity Online Network Exchange (SCONE): online seminar series 3.4. GWIC-Braccini 2024 thesis prize ============================================== 1. Conferences ============================================== 1.1. New Trends in First Quantisation: Field Theory, Gravity and Quantum Computing, Bad Honnef, Germany --------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/?p=29066 Starting: 2025-04-13 to 2025-04-17 Location: Bad Honnef, Germany Additional Information: https://www.we-heraeus-stiftung.de/veranstaltungen/new-trends-in-first-quant... Contact: s.franchino-vinas[AT]hzdr.de Field theories provide some of the best theoretical descriptions of fundamental physics. In recent years, however, several theoretical branches of physics based on the framework of first quantisation have blossomed, complementing better-known field-theoretic approaches. This workshop aims to bring together these research communities, identifying shared challenges, exchanging cutting edge theoretical tools, and fostering new interdisciplinary collaborations. The workshop will cover the following themes: * Foundations of the first quantised worldline approach to quantum field theory * Gravity in the first quantised approach * Non-perturbative techniques in first quantisation * Quantum computing in first quantised frameworks. A series of invited talks will present up-to-date results while keeping them accessible to non-experts. These talks will lead discussion sessions, which will have a prominent role to enhance cross-community knowledge exchange. Early career researchers and researchers from under-represented backgrounds in the community are highly encouraged to participate and can propose contributed talks. Applicants should detail which of the above topics their research interests best align with. Scientific organizers: Edwards, James Paul (University of Plymouth) Franchino-Vinas, Sebastian Alberto (Universita' di Genova and HZDR) Gies, Holger (Universitaet Jena) +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1.2. Gravitational Wave Cosmology, Brussels, Belgium --------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/?p=29070 Starting: 2025-02-19 to 2025-02-21 Location: Brussels, Belgium Additional Information: http://www.solvayinstitutes.be/event/workshop/gravitational_wave_2025/gravit... Contact: isabelle.vangeet[AT]solvayinstitutes.be The Solvay workshop on "Gravitational Wave Cosmology" will take place at ULB on the 19-21 February 2025. Book your agenda for this exciting program where the speakers will provide their insights on pressing questions that new observations are currently bringing such as: * How can we distinguish cosmological sources from the detected Pulsar Timing Array signal ? * What is the nature of the Hubble tension: systematic errors or a sign for new physics? * How will gravitational waves standard sirens contribute in the near future? * How to distinguish the primordial gravitational wave background from the astrophysical background? * Which notable multi-messenger signatures should be searched for ? We hope to see you at this exciting workshop! On behalf of the organising committee, Giacomo Bruno, Sebastien Clesse, Geoffrey Compere, Archisman Ghosh, Alberto Marrioti, Samaya Nissanke, Nick Van Remortel, Alex Sevrin +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1.3. EMRI Search and Inference within the LISA Global Fit, Paris, France --------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/2025/01/06/emri-search-and-inference-wit... Starting: 2025-06-23 to 2025-06-25 Location: Paris, France Additional Information: https://indico.in2p3.fr/event/34916/ Contact: alvincjk[AT]nus.edu.sg We are pleased to announce a workshop titled "EMRI Search and Inference within the LISA Global Fit - Part I", to be held from 23 to 25 June 2025 at the AstroParticule et Cosmologie (APC) laboratory in Paris, France. Part II of this workshop will be held in Summer 2026 at the National University of Singapore (NUS). Applications for Part I are now open on the event website. When compact objects such as neutron stars or stellar-mass black holes venture into the vicinity of giant black holes, they can form highly asymmetric and strongly relativistic binary systems known as extreme-mass-ratio inspirals (EMRIs). EMRIs are some of the most promising gravitational-wave sources that the upcoming space mission LISA might observe, but also some of the most difficult to model, detect and characterise. The aim of this workshop is to bring together experts in EMRI science and LISA data analysis, to assess the state of the art in the field and to further develop plans for the optimal extraction of science from such sources. The workshop will focus mainly on data analysis techniques for EMRI search and inference in the broader context of the LISA global fit, but will naturally extend to adjacent topics such as the construction of accurate and efficient waveform templates, and the impact of astrophysical environments on EMRI modelling and interpretation. To facilitate productive interaction, the workshop will be capped at 40 participants, and will allocate plenty of time for discussion and collaboration while limiting the number of talks each day. Applications will be accepted until all workshop openings are filled, but we recommend applying before 28 Feb 2025 for full consideration. We look forward to seeing you in Paris next year! LOC: Stanislav Babak, Quentin Baghi, Alvin Chua, Antoine Petiteau +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1.4. PiTP: Gravitational Waves from Theory to Observation, Princeton, NJ, USA --------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/2025/01/09/pitp-gravitational-waves-from... Starting: 2025-07-14 to 2025-07-25 Location: Princeton, NJ, USA Additional Information: http://pitp.ias.edu Contact: pitp[AT]ias.edu PiTP is an intensive two-week summer program designed for advanced graduate students and postdoctoral scholars. The program will be held from July 14-25, 2025 at the Institute for Advanced Study, Princeton, NJ. The school will explore the field of gravitational wave physics and astrophysics, bridging the gap between theory and observation. Gravitational waves offer a unique window into the Universe, allowing us to probe extreme astrophysical environments and primordial cosmological epochs. Gravitational waves also allow for powerful tests of general relativity in the strong field regime. Over the last decade, the direct detection of gravitational waves has opened up new avenues of research, driving rapid advancements in theoretical modeling, observational techniques, and data analysis. The school will provide a comprehensive overview of the field's current state, covering key theoretical tools, the latest developments in modeling gravitational wave sources, and state-of-the-art methods in data analysis. These tools are essential for extracting physical insights from current observations and will be a critical foundation for interpreting data from more sensitive upcoming detectors. Topics will include: Waveform models; Numerical Relativity; Gravitational Wave Searches; Parameter Estimation Pulsar Timing Arrays; Astrophysics of Gravitational Wave Sources and interpretation of current observational data. Confirmed speakers are: Bruce Allen (Max Planck Institute for Gravitational Physics); Emanuele Berti (Johns Hopkins University); Neil Cornish (Montana State University); Maya Fishbach (University of Toronto); Luis Lehner (Perimeter Institute); Chiara Mingarelli (Yale University); Patricia Schmidt (University of Birmingham); Tejaswi Venumadhav Nerella (University of California, Santa Barbara); Barak Zackay (Weizmann Institute); Matias Zaldarriaga (Institute for Advanced Study). We would be grateful if you would bring this program to the attention of colleagues in your department and elsewhere, as well as advanced graduate students and postdocs in associated departments. Participation of women, minorities, and students from institutions with smaller programs is encouraged. Applications are due by March 1, 2025. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1.5. 2nd Workshop on Self-Force and Amplitudes, Southampton, UK --------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/?p=29090 Starting: 2025-09-09 to 2025-09-12 Location: Southampton, United Kingdom Additional Information: https://indico.cern.ch/event/1485758/ Contact: z.nasipak[AT]soton.ac.uk The 2nd Workshop on Self-Force and Amplitudes will be held in Southampton, UK, 9-12 Sep 2025. Like the first event, which was held at the Higgs Centre in Edinburgh in 2024, this workshop aims to bring together experts from the self-force and high-energy physics communities to discuss open challenges and opportunities at the interface between the two fields. Topics will include the following: - using data from scattering scenarios to inform models of gravitationally bound systems - using the self-force expansion to determine unknown high-order terms in the post-Minkowskian series, and vice versa - using self-force results to inform resummations of post-Minkowskian calculations, and vice versa - validating and informing resummation techniques using numerical relativity simulations of scattering orbits - describing Kerr black holes with amplitudes and point particles - investigating double copy structures in classical gravity and black hole perturbation theory There will be plenty of time allotted for discussions. Speaking slots are by invitation only, but registration is open to all. Due to limited space, registration will be moderated. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1.6. APCTP Workshop on Gravitational Waves 2025, Taipei, Taiwan --------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/2025/01/14/apctp-workshop-on-gravitation... Starting: 2025-04-20 to 2025-04-25 Location: Taipei, Taiwan Additional Information: https://sites.google.com/apctp.org/apctp-gw2025 Contact: apctp.gw2025[AT]gmail.com Gravitational waves (GWs) are transforming our understanding of the Universe, offering a revolutionary window into cosmic phenomena that were previously inaccessible through traditional astronomical observations. The LIGO-Virgo-KAGRA consortium's observations of hundreds of transient GW events from merging stellar mass black holes and neutron stars during the last decade have inaugurated the era of GW Astronomy by deepening our knowledge of these extreme stars of Einstein's General Relativity. Rapidly maturing Pulsar Timing Array efforts have provided glimpses of nanohertz GWs, offering new insights into high-energy phenomena in the early Universe and supermassive black hole binaries. The upcoming/proposed GW observatories like SKA, LIGO-India, LISA, Taiji/TianQin, ET, CE, and LILA are expected to address some of the most pressing challenges in modern cosmology, such as the Hubble tension and the nature of inflation in the early Universe while providing ultra-sensitive tests for Einstein's universe. The workshop APCTP-GW2025 aims to bring together researchers from the Asia Pacific region who are working on various aspects of the rapidly advancing field of GW astronomy. Set in the beautiful backdrop of Taipei in the spring, participants will not only engage in discussions but also enjoy the excellent weather, vibrant culture, and authentic traditional cuisine. The workshop will be held at the Institute of Physics, Academia Sinica in Taipei, Taiwan from April 20 to April 25, 2025. Registration is free, but limited slots are available. Contributed talks and posters are welcome. Deadline of registration and submission of abstracts: 1st March 2025. SOC (Achamveedu Gopakumar, Ian Vega, Kin-Wang Ng, Reginald Christian Bernardo and Stephen Appleby) +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1.7. Workshop on Gravitational Waves Detection, Baton Rouge, LA, USA --------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/?p=29103 Starting: 2025-02-27 to 2025-02-28 Location: Baton Rouge, Louisiana, USA Additional Information: https://relativity.phys.lsu.edu/GWworkshop2025/ Contact: psingh[AT]lsu.edu The workshop is organized by the Department of Physics and Astronomy at Louisiana State University to celebrate Gabriela Gonzalez' distinguished career which has impacted gravitational waves on the occasion of her 60th birthday. There will be 15 invited talks and evening engagements. The workshop will be held in person at LSU bringing together mentors, collaborators, postdocs and students of Gabriela Gonzalez, and people interested in the topics. There is no fee to attend the workshop, but we ask that people register at the workshop website. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1.8. From Puzzles to New Insights in Fundamental Physics, Campagna, Italy --------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/?p=29119 Starting: 2025-06-23 to 2025-06-27 Location: Campagna, Italy Additional Information: https://www.pifp2025.it/ Contact: luca.buoninfante[AT]ru.nl The main objective of the Campagna Conference on "From Puzzles to New Insights in Fundamental Physics" is to thoroughly inspect puzzles and open questions in fundamental physics and to share and gain new insights into our understanding of the physical world. The Campagna Conference will also be a great opportunity to celebrate 100 years of Modern Quantum Mechanics. In-person registration is open only for PhD students and early postdocs. Priority will be given to those willing to present a poster. Due to capacity constraints, the total number of participants, including Invited Speakers and organizers, is limited to 65. Talks are by invitation only. Invited speakers include: Damiano Anselmi, Alessandra Buonanno, Jeremy Butterfield, Claudia de Rham, Francesco Di Filippo, John Donoghue, Gia Dvali, Katherine Freese, Marco Genovese, Flaminia Giacomini, David Gross, Duncan Haldane, Gerard 't Hooft, Benjamin Knorr, Sravan Kumar, Stefano Liberati, Slava Mukhanov, Saverio Pascazio, Alessia Platania, Didier Queloz, Adam Riess, Mairi Sakellariadou, Christof Wetterich, Frank Wilczek, Masahide Yamaguchi. The conference will be held in the town of Campagna, in the province of Salerno, the south of Italy. Campagna with its ancient origins, vast culture, and inspiring scientific history offers an ideal place where thinkers can gather, reflect and discuss Nature's most fundamental questions. The town has already shown its special atmosphere in the past by hosting two profound thinkers, scientists and philosophers: Giordano Bruno and Juan Caramuel. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1.9. Tales of Gravity, Nottingham, UK --------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/?p=29124 Starting: 2025-04-07 to 2025-04-11 Location: Nottingham, UK Additional Information: https://indico.global/event/5661/overview Contact: thomas.sotiriou[AT]nottingham.ac.uk Dear colleagues, We are excited to announce the conference "Tales of Gravity", to be held in Nottingham on April 7-11, 2025. For more details, to register and submit an abstract for a contributed talk, please follow the link provided. The conference will cover a range of areas connected to gravity, including fundamental physics, cosmology, relativistic astro, data and modelling, mathematics and experiment. The first two days of the meeting will be run in conjunction with UK Cosmology, which will partially cover expenses for UK participants. The conference will celebrate the recent opening of the Nottingham Centre of Gravity (NCoG), which brings together Nottingham's expertise in all aspects of gravitation in the Schools of Mathematical Sciences and Physics and Astronomy. The conference will also run alongside the Cosmic Titans exhibition, an inspiring blend of art and science, featuring commissions from nine artists who have collaborated with members of the NCoG and other UK-based researchers in gravity and quantum physics. Through immersive sculptural installations, film, and photography, these artists capture the excitement, wonder, and poetry of cutting-edge scientific discovery, offering a unique perspective on how these advancements shape our future. Nottingham is just under two hours by train from London, and served by Birmingham airport (less than an hour) and East Midlands Airport. The city is home to three of the oldest pubs in England, a castle, as well as the mill owned by George Green. You can also visit Isaac Newton's birthplace, complete with apple trees, in nearby Woolsthorpe Manor. Best wishes, The Organising Committee: Miguel Bezares, Stephen Green, Oliver Gould, Antonio Padilla, Laura Sberna, Thomas Sotiriou, David Stefanyszyn, Silke Weinfurtner +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1.10. Caltech Relativistic Astrophysics Summer School, Pasadena, CA, USA --------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/?p=29130 Starting: 2025-06-23 to 2025-06-27 Location: Pasadena, CA, USA Additional Information: https://relastro-school-2025.caltech.edu Contact: emost[AT]caltech.edu Dear all, We are pleased to announce the Caltech Relativistic Astrophysics Summer School 2025, which will take place in Pasadena, CA from June 23-27, 2025. https://relastro-school-2025.caltech.edu High-energy astrophysics has made remarkable progress in describing some of the most extreme phenomena in the universe. Recent discoveries such as compact binary mergers and multi-messenger gravitational wave events, fast radio bursts, ultra-high energy cosmic rays, and advances in our understanding of the transient high energy sky (radio, X-ray, gamma-ray) open up new possibilities for forefront research in these rapidly evolving fields. This summer school aims to provide beginning and advanced graduate students in astrophysics, physics, and adjacent fields with the knowledge and tools to fully take advantage of these exciting developments. A particular focus of the school will be the application of emerging computational tools to provide high-fidelity models of high-energy astrophysical phenomena in strong gravity environments, e.g., around black holes or neutron stars. The one-week long summer school will include lectures on a broad range of topics: Black hole astrophysics Dynamo and turbulence Magnetohydrodynamics Multi-messenger gravitational wave events Neutrino astrophysics Neutron star magnetospheres Numerical Relativity Plasma kinetics Applications are open now. To receive full consideration, applications should be submitted by April 1, 2025. Partial financial support is available on a request basis. For the organizers, Elias R. Most, Sasha Philippov +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1.11. The 11th Conference of the Polish Society on Relativity, Wroclaw, Poland --------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/2025/01/28/the-11th-conference-of-the-po... Starting: 2025-07-21 to 2025-07-24 Location: Wroclaw, Poland Additional Information: https://events.ift.uni.wroc.pl/event/83/ Contact: potor2025[AT]protonmail.com We happily announce the 11th annual conference of the Polish Society on Relativity (PoToR), which is the Polish organisation of physicists engaged in the research on classical or quantum gravity. As always, it is open to all people working in these fields of study, not only members of the Society. We aim to cover the full spectrum of topics, encompassing mathematical and numerical relativity, gravitational waves, relativistic astrophysics, cosmology, quantum gravity, and modified gravity (or other models going beyond GR). The conference will be held in the centre of the historic city of Wroclaw. The list of plenary speakers is still being completed but includes so far: Piotr Chrusciel (University of Vienna) Betti Hartmann (University College London) Jackson Levi Said (University of Malta) Anna Pachol (University of South-Eastern Norway) Dorota Rosinska (University of Warsaw) The registration fee (covering coffee breaks, lunches and conference materials) amounts to 1100 PLN for regular participants and 800 PLN for PoToR members or students, (i.e. around 260 and 190 EUR, respectively). We encourage young researchers to apply for the potential support to cover the fee, travel or local expenses through the COST Action networks. Eligible networks include CA21136 and CA23130. For more and up to date information, follow a link to the conference website provided here. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1.12. The 5th Meeting on Gravitational Wave Science in Scandinavia, Copenhagen, Denmark --------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/?p=29150 Starting: 2025-05-15 to 2025-05-16 Location: Copenhagen, Denmark Additional Information: https://strong-gr.com/5th-meeting-on-gravitational-wave-science-in-scandinav... Contact: julie.demolade[AT]nbi.ku.dk We are pleased to announce that the Niels Bohr Institute will be hosting The 5th Meeting on Gravitational Wave Science in Scandinavia on May 15 - 16, 2025. The gravitational physics landscape has been evolving rapidly, driven in good part by our ability to study strong-field regions, in particular black holes, with gravitational waves. Gravitational-wave astronomy will celebrate a decade of existence in 2025, and with it, we celebrate a revolution in physics. The Scandinavian community has been producing exciting results in the field and will meet for the 5th Meeting on Gravitational Wave Science in Scandinavia. There is no registration fee, and no financial support is possible. Due to the venue's limited capacity, participation is moderated. Please register at https://strong-gr.com/5th-meeting-on-gravitational-wave-science-in-scandinav... before April 15, 2025. The organizers will confirm your application as soon as possible. For more details, visit the meeting website at https://strong-gr.com/5th-meeting-on-gravitational-wave-science-in-scandinav... All the best, Rico Lo, on behalf of the local organizing committee +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1.13. Octonions, standard model, and unification (online) --------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/?p=29158 Starting: 2025-02-07 to 2025-12-19 Location: Online Additional Information: https://www.tifr.res.in/~tpsingh/OSMU2025.pdf Contact: tpsingh[AT]tifr.res.in OSMU2025 Octonions, Standard Model, and Unification February 7 - December 19, 2025 An online lecture series presented by Archive Trust for Research in Mathematical Sciences and Philosophy (Bristol) Motivation: Several physicists believe that quantum theory, as presently understood, is likely to be approximate, not exact. In particular, our understanding of space-time structure in quantum field theory might be in for an overhaul. Twistor theory, trace dynamics, and the number system known as octonions, will possibly play an important role in this improved understanding of space-time. Octonions have also emerged significantly in recent years in the investigation of elementary particles, the standard model, and its unification with gravitation. Perhaps the foundational underpinnings of quantum gravity, as well as of particle physics, need to be examined afresh. Do we need dark matter, or a modified law of gravitation? Does the standard model of cosmology need a revision? The present lecture series presents ongoing research from eminent physicists and mathematicians working in these fields. Each session will be two hours long, with one hour for the talk, followed by an hour long question-answer session. Hosts: Tejinder P. Singh and Michael Wright Advisors: Latham Boyle (Edinburgh), Felix Finster (Regensburg), Cohl Furey (Berlin), Niels Gresnigt (Xi'an Jiaotong-Liverpool University), Jose Isidro (Valencia), Ashutosh Kotwal (Duke), Anthony Lasenby (Cambridge), Roger Penrose (Oxford), Hendrik Ulbricht (Southampton) SPEAKERS Mordehai Milgrom Stacy McGaugh Latham Boyle Igor Kannatchikov Shane Farnsworth Rabindra Mohapatra Gregory Moore Abhay Ashtekar* Bob Coecke* Walter van Suijlekom* Goran Senjanovic* Roger Penrose* (More names to be added) * To Be Confirmed +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1.14. IOP Gravitational Physics Annual Meeting - Analogue Gravity: Theory and Experiment, London, UK --------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/2025/01/31/iop-gravitational-physics-ann... Starting: 2025-02-25 to 2025-02-25 Location: London, UK Additional Information: https://iop.eventsair.com/gpgam2025/ Contact: brien.nolan[AT]dcu.ie We are pleased to announce the annual scientific meeting of the IOP Gravitational Physics Group, which will take place at the Institute of Physics headquarters in London on 25 February 2025. The focus of this year's meeting is Analogue Gravity: Theory and Experiment. Our speakers at this year's meeting are: Maxime Jacquet (Sorbonne) - Overview of analogue gravity Silvia Schiattarella (Nottingham) - Analogue cosmology: cosmological preheating Silke Weinfurtner (Nottingham) - Analogue rotating black hole experiments: state of the art For further details and registration, please see the link above. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1.15. 24th Eastern Gravity Meeting, Durham, NH, USA --------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/?p=29167 Starting: 2025-05-22 to 2025-05-23 Location: Durham, NH, USA Additional Information: https://learnforlife.unh.edu/portal/events/reg/participantTypeSelection.do?method=load&entityId=543566723 Contact: francois.foucart[AT]unh.edu We are pleased to announce that the 24th Eastern Gravity Meeting will be held May 22-23 2025 on the Durham campus of the University of New Hampshire. The meeting will gather researchers involved in all areas of gravitational physics, including classical and quantum gravity, theoretical, observational, and computational gravity, gravitational astrophysics and cosmology. The conference aims to encourage connections between researchers in the Eastern US. Participants may contribute short presentations; priority for presenting at the meeting will be given to junior researchers, and a prize for best student talk, sponsored by the Division of Gravitational Physics of the APS, will be awarded at the end of the meeting. Registration and further information about the meeting is available here: https://learnforlife.unh.edu/portal/events/reg/participantTypeSelection.do?m... For more information about this meeting, please contact Francois Foucart (francois.foucart[AT]unh.edu) or David Mattingly (David.Mattingly[AT]unh.edu). +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1.16. Black Holes, Neutron Stars, and Gravitational Waves @ Black Sea, Varna, Bulgaria --------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/2025/02/01/black-holes-neutron-stars-and... Starting: 2025-06-16 to 2025-06-20 Location: Varna, Bulgaria Additional Information: https://indico.global/event/13880/ Contact: daniela.doneva[AT]uni-tuebingen.de We are pleased to announce the "Black Holes, Neutron Stars, and Gravitational Waves @ Black Sea" conference, to be held in Varna (Bulgaria) on June 16-20 2025. The conference is jointly organized by the University of Sofia and the University of Tuebingen. For more details and registration please follow the link provided. The main topics of the conference are: -- Gravitational waves from the coalescence of black holes, neutron stars, and other compact object -- Detection and analysis of gravitational waves -- Strong field tests of General Relativity and alternative theories of gravity -- Accretion discs and shadows of compact objects -- Pulsar timing -- Fundamental physics with gravitational waves -- Modified theories of gravity -- Long-range gravity, dark matter, dark energy The Conference venue is Hotel Cherno More in Varna. The hotel is located near the beautiful sea park, and then the beach. Varna, located on the eastern coast of Bulgaria, is a vibrant city with a rich history, stunning beaches, and a thriving cultural scene. As one of Europe's oldest cities, Varna boasts a history spanning over 7,000 years, influenced by civilizations such as the Thracians, Greeks, Romans, and Byzantines. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ============================================== 2. Jobs ============================================== 2.1. Several postdoc and PhD positions in Einstein Telescope instrumentation and data analysis R&D, various sites, The Netherlands ------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/?p=29098 Deadline: 2025-01-31 Location: Amsterdam, Maastricht, and Utrecht, The Netherlands Additional Information: https://jobs.nikhef.nl/jobs/several-phd-and-postdoc-positions-rd-and-design-... Contact: c.f.f.vandenbroeck[AT]uu.nl The Nikhef Partnership, which consists of the Nikhef Institute in Amsterdam together with partner universities, is expanding its team working on the Einstein Telescope (ET), and invites applications for several PhD positions and several postdoc positions. These positions cover ET instrumentation, simulation, and data analysis development. For data analysis applicants, a background in Machine Learning is desirable. The positions will be hosted at Amsterdam, Maastricht, and Utrecht, depending on the type of activity. Applicants for the PhD and postdoc positions should respectively have completed a Master or PhD degree in physics or a related field, or in computer science. PhD students will receive a 4-year contract, and postdoc contracts are typically for 2 years. The renumeration is competitive, and the conditions of employment are excellent, as set out in a Collective Labor Agreement. For questions, please contact Stefan Hild (s.hild[AT]nikhef.nl), Andreas Freise (a.freise[nikhef.nl), and Chris Van Den Broeck (c.f.f.vandenbroeck[AT]uu.nl). +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2.2. Postdoc position in "Theoretical Multi-messenger Astrophysics", Hamburg, Germany ------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/?p=29135 Deadline: 2025-02-15 Location: Hamburg, Germany Additional Information: https://www.uni-hamburg.de/stellenangebote/ausschreibung.html?jobID=bbc64991... Contact: stephan.rosswog[AT]uni-hamburg.de The postdoc position is financed as part of the ERC Advanced Grant "INSPIRATION: from Inspiral to Kilonova" which aims at the theoretical modeling of the multi-messenger signals of neutron star mergers. The particular focus will be on the gravitational wave, electromagnetic and neutrino signals of the sources accessible to today's and to future gravitational wave detectors. The successful candidate possesses expertise in the relevant areas of theoretical astrophysics (general relativity, hydrodynamics, nuclear equations of state, neutrino physics/transport, nuclear reactions and radiative transfer) and of computational physics/supercomputing. Candidates with demonstrated expertise in the numerical modeling of relativistic jets and/or radiative transfer are particularly encouraged to apply. Postdoctoral research associates will have their own travel budget and access to excellent computing facilities. Moreover they will profit from the inspiring science environment of and the ample scientific expertise within the Cluster of Excellence "Quantum Universe", https://www.qu.uni-hamburg.de. The application deadline is February 15 2025. For more information please contact Stephan Rosswog under stephan.rosswog[AT]uni-hamburg.de The application has to be submitted via the application system of the University of Hamburg, please see https://www.uni-hamburg.de/stellenangebote/ausschreibung.html?jobID=bbc64991... +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2.3. PhD Position on multi-messenger gravitational wave lensing, Louvain, Belgium ------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/2025/01/28/phd-position-at-uclouvain-bel... Deadline: 2025-03-02 Location: Louvain, Belgium Additional Information: https://cp3.irmp.ucl.ac.be/job/110 Contact: justin.janquart[AT]uclouvain.be The gravitational-wave (GW) group of the University of Louvain (UCLouvain, Belgium), hosted at the Centre for Cosmology, Particle Physics and Phenomenology (CP3, https://uclouvain.be/en/research-institutes/irmp/cp3/) of the Research Institute in Mathematics and Physics (IRMP, https://uclouvain.be/en/research-institutes/irmp/), welcomes applications for a four-year PhD student position on data analysis for multi-messenger lensing, with a focus on searches for GW signals, with current and future ground-based gravitational wave detectors, and coincident electromagnetic counterparts. The selected candidate is expected to start in September 2025 with some flexibility with the starting date. The CP3 center hosts research in physics of the Universe and fundamental interactions on the experimental and theoretical fronts. The UCLouvain GW group is part of the Virgo Collaboration at the European Gravitational Observatory (EGO) and has been active so far in searches for ultra-light dark matter, anisotropic stochastic GW background, gravitational wave lensing and on a multi-messenger project aiming to detect neutrinos and gravitational waves originating from common astrophysical sources. All the data analysis studies are performed in collaboration with theory specialists and use the IRMP computing center that also serves CERN experiments (CMS and NA62), IceCube, KM3NeT, muography, and projects in theoretical particle physics and cosmology. The UCLouvain GW group is also involved in instrumentation projects for both Virgo and the future Einstein Telescope notably at the two research and development facilities, E-TEST and ET Pathfinder. The selected candidate will work under the supervision of Justin Janquart, an expert of gravitational wave lensing data analysis, who joined the research group in September 2024. Activities related to the commissioning, operation, and monitoring of Virgo, implying presence on site, are also envisaged as part of the PhD. Constant and careful supervision of the candidate is also guaranteed thanks to the presence in the group of several postdoctoral researchers. Computing resources and support for traveling are excellent. The UCLouvain GW group, and more generally the CP3 center, is a highly international, diverse, and stimulating environment. The PhD research work will also be conducted in close contact and cooperation with the rest of the Belgian GW community and international partners. The UCLouvain campus is located some 25 km south of Brussels, to which it is conveniently connected by public transport, thus allowing life either in the EU capital or in the pleasant green countryside surrounding the campus. UCLouvain offers several advantages to its personnel, including reimbursement of public transport season tickets between home and workplace and free language courses. For more information, see https://uclouvain.be/en/study/international-welcome-guide.html. Applications must include a curriculum vitae, a personal motivation letter, the academic transcript of university studies, and at least two recommendation letters from senior scientists. Applications must be submitted online by the 2nd of March 2025 at: https://cp3.irmp.ucl.ac.be/job/110. Applicants should hold, by the time of the start of the appointment, a Master Degree in physics or equivalent with a remarkable academic record and they should demonstrate a strong interest and motivation in fundamental physics research. The position will remain open after the first deadline indicated above until a suitable candidate is found. For more information, please contact Justin Janquart (justin.janquart[AT]uclouvain.be) +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2.4. Another PhD position in Quantum Gravity, Nijmegen, The Netherlands ------------------------------------------------------------- Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/?p=29170 Deadline: 2025-02-21 Location: Nijmegen, The Netherlands Additional Information: https://www.hef.ru.nl/~rloll/Web/jobs/jobs.html Contact: r.loll[AT]science.ru.nl A PhD position in Quantum Gravity is available in the group of Prof. Renate Loll in the High-Energy Physics Department of Radboud University in Nijmegen, The Netherlands, starting no later than May 2025. The successful applicant will work under the supervision of Prof. Loll and be part of a large and active research group in quantum and strong gravity, which also comprises senior members J. Ambjorn (part-time), B. Bonga, T. Budd, B. Krishnan and F. Saueressig, and a sizeable group of students and postdocs. Aim of the research is to relate the behaviour of nonperturbative quantum fluctuations of spacetime at the Planck scale to properties of the early universe. Note that the project has a significant computational component, using state-of-the-art lattice gravity methods based on causal dynamical triangulations. Applicants must have a university degree in (theoretical) physics at master level or equivalent and proven abilities in theoretical physics and mathematics, including courses on General Relativity and Quantum Field Theory at a minimum. Good programming skills and a working knowledge of Monte Carlo simulations are essential prerequisites. The PhD position is for four years, which is the expected time for obtaining a doctoral degree in the Netherlands, and is paid according to nationally set standard rates. PhD candidates are required to take a number of courses, usually in the form of attending winter schools organized by the Dutch Research School for Theoretical Physics. They also act as teaching assistants for about ten percent of their working time. Prior to applying, candidates should inform themselves about the research done by Prof. Loll and the group by consulting website and publications. Applications should be sent by email as a single pdf-file to R.Loll[AT]science.ru.nl and consist of a cover letter, CV, transcripts of university grades and degrees, a statement of research interests and motivation for undertaking doctoral research in quantum gravity, as well as the names of at least two senior scientists who are in a position to judge the applicant's suitability for a PhD in theoretical physics. In case you have already applied for the recent PhD position in Quantum Gravity (advertised in Dec 2024 at hyperspace.uni-frankfurt.de/2024/12/19/phd-position-in-quantum-gravity-nijmegen-the-netherlands-2/), and also want to be considered for the present position, a simple email stating this request is sufficient. Do not send the entire application file again. Interested candidates are encouraged to apply as soon as possible. The deadline for applications is Feb 21, 2025. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ============================================== 3. News ============================================== 3.1. New textbook: "Primordial Black Holes" ------------------------------------------------------------ Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/?p=29077 Additional Information: https://link.springer.com/book/9789819788866 Dear Colleagues, We would like to announce the new textboook: "Primordial Black Holes" Published by Springer Editors: Christian Byrnes, Gabriele Franciolini, Tomohiro Harada, Paolo Pani, Misao Sasaki Details of the book are available at https://link.springer.com/book/9789819788866 Primordial black holes (PBHs) were proposed more than 50 years ago as black holes possibly formed across a vast mass range in the early universe. They represent a unique probe to access the primordial universe and cosmological inflation. Furthermore, in certain mass ranges, they could comprise the entirety of the dark matter, seed supermassive black holes at high redshift, be responsible for some gravitational-wave events detected so far, and be novel gravitational-wave sources detectable with future instruments. However, detecting PBHs has proved to be extremely challenging and extensive research focused on setting a variety of constraints on the fraction of dark matter composed by these objects. This book highlights an up-to-date, comprehensive overview on this subject, including pedagogical details on the PBH formation scenarios, cosmological evolution, astrophysical implications, connections with gravitational-wave astronomy, and critical discussion of the latest and future constraints. At variance with all existing reviews on this subject, this book addresses graduate students and researchers not necessarily familiar with all areas of the topic, providing details on important key results rather than collecting and reviewing the latest literature. The topic is naturally interdisciplinary and connects areas as diverse as cosmology, particle physics, gravitational-wave astronomy, and numerical simulations. To reflect this diversity, the book includes 25 contributions from key researchers working in these different areas. It provides a unique reference both to approach the topic for the first time and to learn a specific specialized sub-area. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 3.2. Living Reviews in Relativity: "Primordial black holes and their gravitational-wave signatures" ------------------------------------------------------------ Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/2025/01/27/living-reviews-in-relativity-... Additional Information: https://link.springer.com/journal/41114 The open-access journal Living Reviews in Relativity has published a new review article on 23 January 2025: Bagui, E., Clesse, S., De Luca, V. et al. (For the LISA Cosmology Working Group) Primordial black holes and their gravitational-wave signatures. Living Rev Relativ 28, 1 (2025). https://doi.org/10.1007/s41114-024-00053-w Abstract: In the recent years, primordial black holes (PBHs) have emerged as one of the most interesting and hotly debated topics in cosmology. Among other possibilities, PBHs could explain both some of the signals from binary black hole mergers observed in gravitational-wave detectors and an important component of the dark matter in the Universe. Significant progress has been achieved both on the theory side and from the point of view of observations, including new models and more accurate calculations of PBH formation, evolution, clustering, merger rates, as well as new astrophysical and cosmological probes. In this work, we review, analyze and combine the latest developments in order to perform end-to-end calculations of the various gravitational-wave signatures of PBHs. Different ways to distinguish PBHs from stellar black holes are emphasized. Finally, we discuss their detectability with LISA, the first planned gravitational-wave observatory in space. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 3.3. SemiClassical gravity Online Network Exchange (SCONE): online seminar series ------------------------------------------------------------ Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/?p=29140 Additional Information: https://sites.google.com/view/semiclassicalgravity/ This is an invitation to join SCONE, the SemiClassical Online Network Exchange. The aim of SCONE is to bring researchers in semiclassical gravity together via a series of online seminars. The first series will take place between February and May 2025, with talks taking place typically on the first Monday of the each month. The time of the seminar is at 4 pm GMT, according to the following calendar. 3 February 2025: Nicola Pinamonti (Genoa, Italy) 3 March 2025: Erik Curiel (Bonn, Germany) 31 March 2025: Christiane Klein (York, UK) 5 May 2025: Silvia Pla (TUM, Germany) The title for the opening talk by Prof Pinamonti is: "Semiclassical Einstein equations. Theoretical aspects and some applications." The rest of the titles will be announced in due course. Please subscribe to our mailing list to receive the invitations and information on how to join following the link https://sites.google.com/view/semiclassicalgravity/ by clicking on the 'Mailing list' button at the bottom or sending an email to gravitysemiclassical[AT]gmail.com . On behalf of the organisers, Dr Daan W Janssen (York, UK) Dr Benito A Juarez-Aubry (York, UK) Dr Eleni-Alexandra Kontou (King's College London, UK) Dr Paolo Meda (Pavia, Italy) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 3.4. GWIC-Braccini 2024 thesis prize ------------------------------------------------------------ Announcement on Hyperspace@GU: https://hyperspace.uni-frankfurt.de/?p=29144 Additional Information: https://gwic.ligo.org/thesis-prize.html The Gravitational Wave International Committee and the Friends of Stefano Braccini are pleased to announce the yearly prize recognising an outstanding Ph.D. thesis in the field of gravitational waves, the GWIC-Braccini Thesis Prize. Nominations for the 2024 GWIC-Braccini Thesis Prize are now open. Members of the gravitational-wave community are invited to nominate students who have performed notable research on any aspect of gravitational-wave science. Theses will be judged on (i) originality and creativity of the research, (ii) importance to the field of gravitational waves and gravitational-wave detection, broadly interpreted, and (iii) clarity of presentation. The winner will receive a certificate of recognition and a prize of US $1,000. The 2024 prize will be awarded at an international meeting in summer 2025. (Please note that the jury decision on the 2023 prize was unfortunately delayed; we expect that the 2023 prize will be announced in February 2025.) In this cycle, the prize will be awarded on a calendar year basis for 2024. Theses should have been accepted by the relevant institution between January 1, 2024 and 31 December 31, 2024. A committee selected from the gravitational-wave community will evaluate the nominations and select the winner. The selection committee will make all determinations about eligibility. Nominations should be submitted by February 28, 2025. The nomination package consists of (i) the thesis, (ii) a letter of nomination from the thesis advisor, (iii) a supporting letter from another scientist familiar with the work, and (iv) a single-page abstract of the thesis written by the nominee. The nomination and supporting letters should describe the importance and novelty of the research and the student's particular contribution. Because the large number of submissions imposes a significant burden on the jury, we request that each advisor submit a single nomination, and that they consider whether the thesis is indeed internationally competitive. Electronic submissions are strongly preferred, with the thesis, abstract and the letters in separate pdf files (four files in total). Electronic copies of the nomination materials may be sent to gwic-braccini-prize[AT]phys.ethz.ch. Please provide also a contact email address and the current institution of the nominee in the nomination letter. All submissions will be acknowledged. If an acknowledgement is not received shortly after the deadline, or for any other corner, please e-mail gwic-braccini-prize@phys.ethz.ch. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++