22 June 2026
RIKEN Wako Campus
Asia/Tokyo timezone

The iTHEMS Cosmology Forum Workshop is a series of short workshops, each focusing on emerging topics in cosmology and related areas of fundamental physics. The target audience includes cosmologists, high-energy physicists, and astronomers interested in learning about the subject, not only researchers already working directly in the field. The goal of the workshop is to provide participants with working knowledge of the topic while leaving ample time for discussions and interactions.

This sixth workshop will bring together researchers exploring the physics of the early universe through cosmological collider signatures. Primordial non-Gaussianities generated during inflation provide a unique opportunity to probe heavy particles and high-energy interactions in the early universe, potentially accessing energies much larger than that probed by terrestrial experiments. In recent years, the subject has developed rapidly, incorporating ideas from inflationary cosmology, quantum field theory in curved spacetime, effective field theory, and scattering amplitudes.

The workshop aims to discuss recent theoretical developments, observational prospects, and future directions of cosmological collider physics. One of the key goals of this event is to foster collaboration among researchers working in neighbouring fields, and to encourage participation from young and early-career researchers who are interested in, but may not yet have worked on, these themes. The workshop welcomes a broad audience with interests in theoretical cosmology, gravitation, and quantum field theory.

This forum will consist of 1 day

The workshop will be in English.

The workshops are organised by the Cosmology Study Group at RIKEN iTHEMS.

Important dates:

June 5th - Registration deadline 

June 22th - Workshop Day 

Invited Speakers:

Yi Wang (Hong Kong U. Sci. Tech.)

Masahide Yamaguchi (Institute for Basic Science)

Kyohei Mukaida (KEK)

Kazuyuki Akitsu (Proxima Technology)

Organisers:

Shuntaro Aoki, Nagisa Hiroshima, Muzi Hong, Derek Inman, Amaury Micheli, Hironao Miyatake, Kai Murai, Ryo Namba

Hosted by:

RIKEN Center for Interdisciplinary Theoretical and Mathematical Sciences (iTHEMS)

Support:

No VISA support can be provided.

Limited support for local expenses may be available for postdocs and non-permanent faculty members. Students may be supported if presenting a poster. Please contact us directly.

Conference information

Date/Time

Starts

Ends

All times are in Asia/Tokyo

Location

RIKEN Wako Campus
TBD
RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198
Registration
Registration for this event is currently open.