Kagoshima Workshop on Quantum Aspects of Gravitation

The aim of this workshop is to offer an opportunity for in-person discussion on various issues on quantum aspects of gravitation. Due to the present pandemic situation, we accept invited participants only.

Venue: Sun Amori, Hayato, Kagoshima

Accommodation: Hotel Kyocera (please book the hotel by yourself)

Invited Participants (tentative):

Yugo Abe (Miyakonojo KOSEN), Takanori Anegawa (Osaka U), Wei-Ming Chen (Kobe U), Kohei Fujikura (U Tokyo), Norihiro Iizuka (Osaka U), Takeo Inami (RIKEN), Pak-Hang Chris Lau (Kobe U), Ryo Namba (RIKEN), Kanji Nishii (Kobe U), Sousuke Noda (Miyakonojo KOSEN), Toshifumi Noumi (Kobe U), Yutaka Ookouchi (Kyushu U), Kotaro Tamaoka (Nihon U), Junsei Tokuda (Kobe U), Daisuke Yoshida (Kobe U), Siyi Zhou (Kobe U).

Program (tentative)

Jan 3 (Mon)

Arrival

Jan 4 (Tue)

10:00- Reception

(Chair：Norihiro Iizuka)

10:30-11:30 Yugo Abe "Perturbative S-matrix unitarity in R_μν² gravity" slides

14:00-17:00 Discussion

(Chair：Yugo Abe)

18:30-19:30 Ryo Namba "Particle interactions under gravity: cosmological particle production" slides

Jan 5 (Wed)

(Chair：Takanori Anegawa)

10:30-11:30 Kohei Fujikura "Microlensing constraints on axion stars including finite lens and source size effects" slides

14:00-17:00 Discussion

(Chair：Kohei Fujikura)

18:30-19:30 Pak-Hang Chris Lau "Void formation"

Jan 6 (Thu)

(Chair：Ryo Namba)

10:00-11:00 Wei-Ming Chen "Looking for chaos from string amplitudes"

11:00-12:00 Siyi Zhou "Gravitational waves from first order phase transition during inflation" slides

14:00-17:00 Discussion

(Chair：Kanji Nishii)

18:30-19:30 Kotaro Tamaoka "Random States and (Half-)Wormholes"

Jan 7 (Fri)

(Chair：Daisuke Yoshida)

10:30-11:30 Sousuke Noda "Spectroscopy of Asymptotically (A)dS Black Holes with the Heun function"

12:00- Excursion

Jan 8 (Sat)

(Chair：Yutaka Ookouchi)

10:00-11:00 Takanori Anegawa "Information paradox and island conjecture" slides

11:00-12:00 Junsei Tokuda "Positivity bounds with crossing symmetry and gravity" slides

14:30-16:45 Discussion

(Chair：Kotaro Tamaoka)

18:30-19:30 Yutaka Ookouchi "Two approaches to the dark energy on bubble universe in string theory" slides

Jan 9 (Sun)

(Chair：Sousuke Noda)

10:00-11:00 Daisuke Yoshida "Spacetime singularity in accelerated universe"

11:00-12:00 Toshifumi Noumi "String Regge trajectories on de Sitter space " slides

(Chair：Toshifumi Noumi)

15:00-16:00 Norihiro Iizuka "Islands, the Page curve, wormholes and quantum noise (overview)" slides

18:30-20:30 Discussion

Jan 10 (Mon)

Departure