| 研究課題/領域番号 |
22KF0178
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| 補助金の研究課題番号 |
21F21318 (2021-2022)
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| 研究種目 |
特別研究員奨励費
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| 配分区分 | 基金 (2023)
補助金 (2021-2022) |
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| 応募区分 | 外国 |
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| 審査区分 |
小区分15010:素粒子、原子核、宇宙線および宇宙物理に関連する理論
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| 研究機関 | 京都大学 |
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研究代表者 |
向山 信治 京都大学, 基礎物理学研究所, 教授 (40396809)
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| 研究分担者 |
DI FILIPPO FRANCESCO 京都大学, 基礎物理学研究所, 外国人特別研究員
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| 研究期間 (年度) |
2023-03-08 – 2024-03-31
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| 研究課題ステータス |
完了 (2023年度)
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| 配分額 *注記 |
1,400千円 (直接経費: 1,400千円)
2023年度: 400千円 (直接経費: 400千円)
2022年度: 700千円 (直接経費: 700千円)
2021年度: 300千円 (直接経費: 300千円)
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| キーワード | gravitation / cosmology / gravitational waves |
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| 研究開始時の研究の概要 |
The research proposal focuses on the analysis of several aspects of physics beyond general relativity to gain as much information as possible on the fundamental theory of gravity. Namely, it focuses on theory and phenomenology of non-singular black holes; tidal Love numbers and quasi-normal modes; information loss problem; minimally modified theories of gravity. The research will be of interest to theorists and experimentalists working in the fields of astrophysics, general relativity, and quantum gravity.
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| 研究実績の概要 |
The research focused on aspects related to theory and phenomenology and non-singular black holes and the information loss paradox.
Regarding non-singular black holes, Dr. Di Filippo have obtained a constrain regarding the possible presence of a surface for ultracompact objects mimicking supermassive black holes based on the absence of an outgoing thermal flux of radiation. He has also established a connection between regular black holes and ultracompact stars. Finally, he has discussed some aspect concerning the stability of regular black holes.
Regarding the information paradox, the research focused on the introduction of a new techniques to study the quantum states of Hawking radiation. This should be regarded as a first step toward understanding the connection between soft hair and the information paradox.
Finally, Dr. Di Filippo contributed to a book on regular black holes by co-writing a chapter.
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