03/16
2022
Seminar
- Title题目 Not Quite Black Holes and Gravitational Wave Echoes Search
- Speaker报告人 任婧 (中国科学院高能物理研究所)
- Date日期 2022年3月16日15:00
- Venue地点 南楼6620
Abstract摘要
Current observations of astrophysical black holes only confirm the GR predictions at the order of the horizon size, with no direct implications regarding physics immediately outside the horizon. On the other hand, near-horizon corrections might be fundamental to understanding the mysterious features of black holes. In this talk, I will discuss the possibility of not quite black holes (horizonless ultracompact objects) being the endpoint of gravitational collapse. Theoretically, I will talk about an interesting candidate and its implication for black hole physics and particle physics. Observationally, gravitational wave echoes may provide a smoking gun signal for such objects in general, especially when strong deviations occur at a microscopic distance (say Planck scale) outside of the macroscopic objects. I will talk about the recent progress made in searches for echoes.
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