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Aspen Summer 2025: Physics in the Era of Nanohertz Gravitational Waves

We are excited to announce that our 2025 summer Aspen workshop proposal for "Physics in the Era of Nanohertz Gravitational Waves" has been accepted and applications are now open.
The program is scheduled for August 3-24, 2025. The application deadline is January 31, 2025; see https://aspenphys.org/summer-workshops/. We invite you to apply. Please also encourage other people who are active in the field to apply.

Be aware that we cannot guarantee admission to the workshop. Admission to the workshop is granted not by the workshop organizers, but by the Admissions Committee of the Center. Because of the constraints imposed by the rest of the Aspen Center for Physics program, they are usually not able to admit everyone who applies.

Aspen Center for Physics encourages participants, especially those early in their careers, those with families, and those from underrepresented groups, institutions, and countries, to apply for our summer program. The Center has a limited amount of additional financial support for participants who fall into these, and other, special categories and encourages applicants who need financial support to apply for it on their application.

Workshop Website

3rd LISA Sprint, April 28-30, 2025 in Huntsville

The Laser Interferometer Space Antenna (LISA) is a joint effort of ESA and NASA to develop and operate the first space-based observatory of gravitational waves (GWs) in the millihertz frequency band. To prepare for LISA observations and its unique data products, we are organizing the 3rd LISA Sprint in Huntsville, AL, from Monday April 28 to Wednesday April 30, 2025.

The meeting’s goals are two-fold:

  • Connect LISA data scientists with astronomers and astrophysicists who will incorporate LISA data products into their research.
  • Advance the research community’s readiness to capitalize on LISA observations.

Workshop Theme

The theme for this third meeting is Time Domain and Multimessenger Astronomy with LISA. During the workshop, small interdisciplinary teams of researchers will come together to make concrete progress on concise projects and goals related to this scientific area.

Participants are encouraged to propose ideas and contribute material that aligns with the workshop’s format. This is a hands-on workshop with no traditional talks—only brief project pitches and a final “show and tell” to share progress with the group.
Apply for the Meeting

Logistics

Information for planning your trip will be available soon. Stay tuned for more details on travel, accommodation, and venue information.

Who Should Attend?

This workshop is ideal for researchers, astronomers, astrophysicists, and data scientists who wish to engage with LISA’s data and contribute to the future of gravitational wave astronomy.

Meeting Website

LVK Collaboration Meeting, March 24-27 2025, Melbourne

We are delighted to host the 2025 March LIGO-Virgo-KAGRA (LVK) Collaboration Meeting in Melbourne, Australia, from March 24th – 27th at the Pullman Melbourne Albert Park Hotel. This year’s meeting will be hosted by the ARC Centre of Excellence for Gravitational Wave Discovery (OzGrav).

Why Melbourne?
Melbourne is a vibrant, multicultural city known for its rich arts scene, fantastic food, and innovative research institutions. As Australia’s scientific hub, Melbourne is the perfect backdrop for the LVK Collaboration Meeting, offering participants both professional and cultural experiences. The Pullman Melbourne Albert Park Hotel offers a picturesque location near the scenic Albert Park Lake, the venue offers state-of-the-art conference facilities, accommodating both large plenary sessions and smaller breakout discussions

Satellite Meetings:
Following the main conference, satellite meetings will be held on Friday the 28th of March, providing additional opportunities for in-depth workshops and discussions.

Whether you’re joining in person or online, we look forward to an engaging and inspiring collaboration!

Venue: Pullman Melbourne Albert Park Dates: March 24th-27th, 2025 (Satellite workshops on the 28th)

Meeting Website

Scientific Machine Learning for Gravitational Wave Astronomy, June 2-6, 2025 in Providence, Rhode Island

The aim of this workshop is to bring together participants from computational mathematics and gravitational wave astronomy to tackle computational challenges in leveraging data-driven methods in key areas of gravitational wave data analysis in order to maximize the science output of the ongoing and upcoming observations. The areas of focus will be: (i) noise classification and detection, (ii) waveform modeling and uncertainty quantification, and (iii) source parameter and astrophysical population Bayesian inference.

The participants will develop and apply new mathematical and computational techniques including: (i) neural network classifiers for distinguishing signals from instrumental noise, (ii) generative machine learning models for simulating realizations of non-Gaussian and non-stationary stochastic processes, (iii) surrogate models including uncertainty quantification, (iv) stochastic sampling, neural posterior estimation leveraging deep neural networks with normalizing flows or diffusion models, and (v) hierarchical Bayesian inference with non-parametric models such as Gaussian processes and simulation-based / approximate Bayesian approaches.

Workshop Website

EFTs, Gravity, and Fluid Dynamics: Progress, Challenges, and Emerging Opportunities Workshop, December 16-18, Urbana, Illinois

“EFTs, Gravity, and Fluid Dynamics: Progress, Challenges, and Emerging Opportunities Workshop” is an event sponsored by the Physics Department of the University of Illinois at Urbana-Champaign and The Gravity Theory Trust, taking place in Urbana, Illinois on December 16 – 18, 2024 in room 190 of the Engineering Sciences Building.

The purpose of this workshop is to bring together experts in Effective Field Theory (EFT), gravity, and fluid dynamics to foster interdisciplinary collaborations.

Sample topics interfacing EFTs, gravity, and fluid dynamics include:

New insights in gravitational thermodynamics and gravitational EFTs.
Causality constraints on gravitational and hydrodynamic EFTs.
The fluid-gravity correspondence.
Mathematical aspects of well-posed formulations of non-ideal fluid dynamics in general relativity.

There is no registration fee but registration is required. The deadline for registration is October 31, 2024.

Workshop Website

KITP rapid response workshop on the GWB, November 12-22, 2024, Santa Barbara

Gravitational Wave Background Found in Pulsar Timing Arrays: Implications for Merging Supermassive Black Holes

Coordinators: Luke Kelley, Chiara Mingarelli, and Gabi Sato-Polito

The recent observation of nanohertz gravitational waves by Pulsar Timing Arrays (PTAs) has opened a new observational window into the universe. Although the origin of the signal has yet to be determined, the measured gravitational-wave background may be produced by a collection of in-spiralling supermassive black holes (SMBHs) or by physics beyond the standard model. The evidence for this background therefore offers unique insights into the astrophysics of SMBHs and potentially new physics. This Rapid Response Workshop will solely focus on the scientific implications for SMBHs of this first PTA detection bringing together experts on both theory and observations.

Workshop Website

Gravity 2025: New Horizon of Black Hole Physics, January 27-31, Kyoto University

Fundamental aspects of black holes have been actively studied so far to unravel the mystery of black holes and to achieve new physics like the quantum theory of gravity. Black holes are the simplest astrophysical objects in the Universe as each black hole can be characterized by a few parameters only in general relativity. For this reason, they are regarded as the best sites to probe new physics.

Given the recent developments in observational and theoretical progress in black hole physics, it is important for theoretical physicists to discuss how we can unravel the mysteries of black holes, probe new physics, and test existing theories from both fundamental and observational points of view.

This workshop aims to bring together experts working on astrophysical and fundamental aspects of black holes to share ideas and expertise and to offer introductory talks to learn relevant state-of-the-art knowledge.

Invited Speakers (*=tbc)

Yanbei Chen (Caltech)
Katy Clough (Queen Mary U. of London)
Astrid Eichhorn (Southern Denmark U.)
Akihiro Ishibashi (Kindai U.)
Paolo Pani (Sapienza U. of Rome)
Chia-Hsien Shen (Natl. Taiwan U.)
*Sergey Sibiryakov (Perimeter Inst.)
Takahiro Tanaka (Kyoto U.)

Contact
gravity2025(at)yukawa.kyoto-u.ac.jp

Organizers
Katsuki Aoki, Antonio De Felice, Francesco Di Filippo, Mohammad Ali Gorji, Shinji Mukohyama, Naritaka Oshita (Chair), Masroor C. Pookkillath, Kazufumi Takahashi

Workshop Website

JGRG 33 – The 33rd Workshop on General Relativity and Gravitation, December 2-6, 2024 in Japan

JGRG is the community of researchers in Japan, working on General relativity and Gravitation. JGRG has hosted an annual workshop series under the same title since 1991. The main purpose of the workshop is to provide a venue for exchanging ideas to pursue future trends of research. The workshop covers a wide range of topics related to general relativity and gravitation.

Date & Venue

December 2 (Mon) – December 6 (Fri), 2024
HigashiOsaka Campus, Kindai University, Osaka

Invited Speakers

  • Vitor Cardoso (Niels Bohr Institute/Lisbon IST)
  • Shasvath Kapadia (IUCAA)
  • Jutta Kunz (University of Oldenburg)
  • Pablo A. Cano (ICC, University of Barcelona)
  • Guo-Chin Liu (Tamkang University)
  • Kent Yagi (University of Virginia)
  • Hirotaka Yuzurihara (ICRR)
  • and more


Registration

Registration form:
Please register from here.
Registration is free of charge.
We do not offer live streaming of sessions or provide recorded presentations.

Important dates

  • September 25 (24:00 JST): Deadline for travel support, Visa support
  • October 15 (24:00 JST): Deadline for abstract submission
  • October 30: Deadline for registration (without presentation)

Travel Support
We offer travel support for domestic participants, particularly students. If you would like to request travel support, please indicate this in the registration form. As our budget for travel support is limited, we may not be able to accommodate all requests.

Programme

Dec. 2 (Mon) – Reception: 9:30 – 10:30, Opening: 10:30 – 10:45
Dec.4 (Wed) – Banquet: 18:00- 20:00
Dec.6 (Fri) – Award & Closing: 12:00 – 12:30

Participant List – TBA

Banquet – Date: Dec. 4th (Wed) 18:00-20:00

Place: THE CHARGING PIT&DINER (Building No.7) [Japanese]Price: TBA (cash only)

Scientific Organizing Committee

Hideki Asada (Hirosaki U.), Tomohiro Harada (Rikkyo U.), Kenta Hotokezaka (RESCEU), Akihiro Ishibashi (Kindai U.), Yosuke Itoh (Osaka Metropolitan U.), Keisuke Izumi (Nagoya U.), Sugumi Kanno (Kyushu U.), Kohei Kamada (HIAS, UCAS, Hangzhou), Tsutomu Kobayashi (Rikkyo U.), Kazunori Kohri (NAOJ), Koutarou Kyutoku (Chiba U.), Kei-ichi Maeda (Waseda U.), Hayato Motohashi (Kogakuin U.), Shinji Mukohyama (YITP), Keiju Murata (Nihon U.), Atsushi Nishizawa (Hiroshima U.), Toshifumi Noumi (University of Tokyo), Masato Nozawa (Osaka Institute of Technology), Ryo Saito (Yamaguchi U.), Hisa-aki Shinkai (Osaka Institute of Technology), Teruaki Suyama (Tokyo Institute of Technology), Takahiro Tanaka (Kyoto U.), Takashi Torii (Osaka Institute of Technology), Shinji Tsujikawa (Waseda U.), Masahide Yamaguchi (IBS/ Tokyo Institute of Technology), Kazuhiro Yamamoto (Kyushu U.), Shuichiro Yokoyama (Nagoya U.), Chul-Moon Yoo (Nagoya U.), Hirotaka Yoshino (Osaka Metropolitan U.)

Local Organizing Committee

Kaiki Taro Inoue, Akihiro Ishibashi, Yosuke Itoh, Yoshinori Matsuo, Ken-ichi Nakao, Masato Nozawa, Hisa-aki Shinkai, Takashi Torii, Hirotaka Yoshino

Workshop Website

XVII Black Holes Workshop, December 19-20, 2024 at University of Aveiro

From astrophysics to high-energy physics, from information theory to quantum gravity, black holes have acquired an ever increasing role in fundamental physics, and are now part of the terminology of many important branches of observational, theoretical and mathematical physics.

The Black Holes Workshops gather researchers working on physical and mathematical problems of black holes, both in their classical and quantum aspects, as well as their connections to general relativity and gravitation, string theory, cosmology, and astrophysics, and stimulate the interaction between all these issues.

The seventeenth edition of the Black Holes Workshop celebrates landmark contributions in the history of black holes and gravitation, namely the 50 years of the Hawking radiation, the 50 years of the discovery of the Hulse and Taylor pulsar, and the 75 years of the Gödel solution.

The workshop will take place at the University of Aveiro, in December 19 and 20, 2024. Researchers on black holes in all their aspects are invited to participate. Registration for the event will start on September 16th and end on December 2nd. The deadline to submit abstracts is November 22nd. A limited number of accepted contributions will be selected, taking into account their scientific merit. Submissions of abstracts after the deadline will not be allowed. Please follow the registration instructions.

In this edition there will be no registration fee for participants.

Workshop Website

Detection and Analysis of Gravitational Waves in the era of Multi-Messenger Astronomy, November 17-22, 2024

The Banff International Research Station will host the “Detection and Analysis of Gravitational Waves in the era of Multi-Messenger Astronomy: From Mathematical Modelling to Machine Learning” workshop in Banff from November 17 - 22, 2024.

Gravitational waves are a new way to explore the sky and uncover the Universe’s deepest mysteries. In the last few years, tens of gravitational-wave detections have allowed scientists to harness the potential of gravitational waves in testing Einstein’s General Relativity theory under extreme conditions, helping to understand the origin of dense matter, measuring the Hubble constant, and estimating the population of black holes in the Universe.

Researchers from all around the world are gathering in Banff to discuss new, recent results from the LIGO, Virgo and KAGRA detectors and the future of gravitational-wave science. The workshop “Detection and analysis of gravitational waves in the era of multi-messenger astronomy: From mathematical modelling to machine learning”, a second in its series, provides a forum, unique in its genre, for discussing new mathematical methods in modelling, detecting, and analyzing gravitational waves, as well as their integration with machine learning and artificial intelligence.

The Banff International Research Station for Mathematical Innovation and Discovery (BIRS) is a collaborative Canada-US venture that provides an environment for creative interaction as well as the exchange of ideas, knowledge, and methods within the Mathematical Sciences, with related disciplines and with industry. The research station is located at The Banff Centre in Alberta and is supported by Canada’s Natural Science and Engineering Research Council (NSERC), the U.S. National Science Foundation (NSF), and the Government of Alberta.

BIRS sits on the traditional territory of the Stoney Nakoda Nations of Wesley, Chiniki, and Bearspaw; three Blackfoot Confederacy nations: the Pikani, Kainai, and Siksika; and the Tsuut’ina First Nations, and is shared with the Métis Nation of Alberta. Before provincial boundaries were established, the Ktunaxa and Maskwacis people lived in this territory as well. For decades, these peoples have contributed to preserve this land, honoring and cherishing it as a place of knowledge and healing. We invite you to follow in their footsteps and join us in celebrating human creativity, cooperation, and learning.

Organizers

Marco Cavaglia (Missouri University of Science and Technology)
Jade Powell (Swinburne University of Technology)
Elena Cuoco (European Gravitational Observatory)
Shaon Ghosh (Montclair State University)

Workshop Website