2–day International Workshop
“Dawn of Gravitational–wave Cosmology and Theory of Gravity” （1/26 & 27）
主 旨
Gravitational waves, of which the existence was first predicted by Albert Einstein in 1916, waited 100 years to finally confront direct detection in 2015. This discovery implies that we have acquired a new “eye” to view our Universe, and it was the dawn of a new era, gravitational–wave cosmology. This new tool will drastically advance our understanding of our Universe by allowing us to observe various objects that are invisible to observations based on electromagnetic waves, such as distant astronomical bodies and even the very moment right after the birth of the Cosmos, called “inflation”. On the other hand, gravitational waves are figuratively called “ripples in the fabric of spacetime,” which implies that spacetime itself is considered a kinematical object in our current understanding of gravity. Among the known four fundamental forces, the nature of gravity is not so well understood observationally as electromagnetism, weak force, or strong force. Gravitational waves and their observations will with no doubt unveil missing pieces in understanding the law of gravity. Placed in such an exciting period of cosmological and astrophysical research, both theoretical and observational, our main theme of this workshop is to initiate and proceed the next generation of cosmology and gravitational theories, keywording observational aspects of gravitational waves.
日 時
2023年1月26日（木）10:00～16:30
2023年1月27日（金）10:00～17:00
実施形態
イベントは英語で行われます。
以下の会場で少人数で開催します。（※ZOOMでの配信は行いません）
湯本市民センター（宮城県仙台市）
参加申込み
事前のお申込みが必要です。東北大学 知のフォーラムのWEBページからお申込みください。
（https://www.tfc.tohoku.ac.jp/junior-research-program/event/9018.html）
※20名程度まで会場で聴講できます。（※定員に達しましたら受付を終了いたします）
※新型コロナウィルス感染症拡大の状況によっては人数の調整、あるいは開催を中止する場合がございます。
招待講演者
Chunshan Lin (Jagiellonian University)
Mainak Mukhopadhyay (Pennsylvania State University)
George Zahariade (Barcelona IFAE)
プログラム
Thursday, January 26, 2023
10:00 – 12:00 Free Discussion about gravitational wave
12:00 – 13:30 Break
13:30 – 14:30 “Sound Speed Resonance: A Novel Mechanism of Matter–Graviton Conversation (1)”
／ Chunshan Lin (Jagiellonian University)
14:30 – 15:30 “Kink–antikink scattering in a quantum vacuum (1)”
／ Mainak Mukhopadhyay (Pennsylvania State University)
15:30 – 16:30 “Quantum formation of topological defects (1)”
／ George Zahariade (Barcelona IFAE)
Friday, January 27, 2023
10:00 – 11:00 “Quantum formation of topological defects (2)”
／ George Zahariade (Barcelona IFAE)
11:00 – 12:00 “Kink–antikink scattering in a quantum vacuum (2)”
／ Mainak Mukhopadhyay (Pennsylvania State University)
12:00 – 13:00 “Sound Speed Resonance: A Novel Mechanism of Matter–Graviton Conversation (2)”
／ Chunshan Lin (Jagiellonian University)
13:00 – 15:00 Break
15:00 – 17:00 Free discussion about cosmology
主 催
東北大学 知のフォーラム（Tohoku Forum for Creativity）
共 催
早稲田大学高等研究所（Waseda Institute for Advanced Study, Waseda University）
理化学研究所数理創造プログラム (RIKEN Interdisciplinary Theoretical and Mathematical Sciences Program [iTHEMS])
