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First Day (Tuesday, March 4, 2025)

9:30-9:55 Registration

9:55-10:00 Opening

Session 1 (Chair: Yuki Sakakihara)

Time Speaker Title of the talk
10:00-10:20 Gonzalo Alonso-Alvarez (Online) The role of dark matter in supermassive black hole mergers
10:20-10:40 Jan Tränkle Induced gravitational wave probes of the primordial black hole reheating scenario

10:40-11:00 Break

Session 2 (Chair: Asuka Ito)

11:00-12:00 Wakutaka Nakano Gravitational wave spectrum from expanding string loops on domain walls: Implication for nanohertz pulsar timing array signals

12:00-13:30 Lunch

Session 3 (Chair: Minoru Eto)

13:30-13:50 Katsuya Hashino Precisely probing the Higgs potential at the gravitational wave observation experiments
13:50-14:10 Ryusuke Jinno Gravitational waves from defect-driven phase transitions: domain walls
14:10-14:30 Maria Mylova Boosting primordial gravitational wave (PGW) non-Gaussianity: A path towards detection of PGWs

14:30-15:30 Break

Session 4 (Chair: Ryusuke Jinno)

15:30-15:50 Ippei Obata Axionic defects in the CMB: birefringence and gravitational waves
15:50-16:10 Asuka Ito Quantum entanglement of ions for light dark matter detection
16:10-17:10 Takashi Toma Probing pseudo-Nambu-Goldstone dark matter evading direct detection bounds

17:10-17:30 Break

Session 5 (Chair: Yuki Sakakihara)

17:30-18:30 Graham White (Online) Why quantum gravity made me fall in love with domain walls

19:00-21:00 Banquet

Second Day (Wednesday, March 5, 2025)

Session 6 (Chair: Yuki Sakakihara)

Time Speaker Title of the talk
10:00-11:00 Nobuchika Okada (Online) Inflation, dark matter, neutrino mass generation, and gravitational waves in gauge extensions of the Standard Model

11:00-11:20 Break

Session 7 (Chair: Ippei Obata)

11:20-12:20 Junseok Lee Topological Defects with Multi-Axion

12:20-12:30 Photo

12:30-14:00 Lunch

Session 8 (Chair: Asuka Ito)

14:00-14:20 Lukas Treuer Quantum Effects on Neutrino Parameters From a Flavored Gauge Boson
14:20-14:40 Takumi Fujimori The correction of the relative motion of detectors for Ultra-Light Dark Matter search

14:40-15:00 Break

Session 9 (Chair: Ippei Obata)

15:00-16:00 Elisa Ferreira Probing ultra-light axion dark matter wave interference

16:00-16:05 Closing

16:05-17:00 Discussion