The universe at extremely early times is expected to be described by some theory of quantum gravity, although we still do not know precisely what quantum gravity actually is.
In modern approaches to quantum gravity, the path integral point of view provides a fundamental framework towards answering this pressing question. However, an evaluation or even just a precise definition of the path-integral for a full-fledged quantum gravity is one of the most important open problems in modern theoretical physics.
With the "UK-Japan Workshop on Quantum Gravity 2026" we want to bring together experts working on different aspects of the gravitational path-integral, such as
- Gravitational Scattering Amplitudes;
- Complex Geometries and Exact WKB;
- Quantum Cosmology;
- Exact Methods and Resurgence Analysis;
with the long-term goal of providing innovative ways of tackling modern problems in quantum gravity.
This workshop is the second event sponsored by the Royal Society International Collaboration Award Grant "Re-PaInt: A Resurgence Path-Integral approach to quantum gravity" shared between Masazumi Honda at Riken iTHEMS and Daniele Dorigoni at Durham University, and aimed at fostering and developing an international partnership between the two institutes, as well as the greater Japan and UK theoretical physics communities working on quantum gravity, broadly intended. The page for the 2025 meeting held at the Riken campus in Kobe can be found here .
Poster Image Credit: Alessia Dorigoni & Andrea Degasperi
Confirmed Speakers:
- Francesco Aprile (Universidad Complutense Madrid)
- David Broadhurst
- Alejandra Castro (Cambridge U.)
- Ioana Coman (University of Edinburgh)
- Hiromi Ebisu (Riken)
- Yasuyuki Hatsuda (Rikkyo U.)
- Adolfo Holguin (Trinity College Dublin)
- Kohtaro Kato (Nagoya U.)
- Paul MacFadden (Durham U.)
- Tatsuhiro Misumi (Kindai U.)
- Masamichi Miyaji (Riken)
- Yuya Murakami (Riken)
- Silvia Nagy (Durham U.)
- Ana-Maria Raclariu (King's College)
- Rodolfo Russo (QMUL)
- Yuya Tanizaki (Kyoto U.)
- Congkao Wen (QMUL)
- Han Yan (Tokyou U.)
Registration:
Registration is open to anyone (not just researchers from Japan or UK). There will be a poster session and we encourage students and early career researchers to present a poster.
The registration deadline is July 17, 2026.
Organisers:
- Daniele Dorigoni (Durham University);
- Hiromi Ebisu (Riken, iTHEMS);
- Tobias Hansen (Durham University);
- Masazumi Honda (Riken, iTHEMS);
Venue:
Acknowledgements:
We would be grateful if you could acknowledge this workshop in a paper which is initiated or conducted during this workshop. Here are the samples of acknowledgments:
- The authors thank the Royal Society under the International Collaboration Award Grant \R2\242058 and the RIKEN Interdisciplinary Theoretical and Mathematical Sciences Program where this work was initiated [completed] during the "Japan-UK Workshop on Quantum Gravity".
- The authors thank the Royal Society under the International Collaboration Award Grant \R2\242058 and the RIKEN Interdisciplinary Theoretical and Mathematical Sciences Program. Discussions during the "Japan-UK Workshop on Quantum Gravity" were useful in completing this work.
Supporting Organisations:
This workshop is supported by the Royal Society International Collaboration Award Grant \R2\242058 "Re-PaInt: A Resurgence Path-Integral approach to quantum gravity".
 |
 |