报告人：曾定方副教授 北京工业大学

报告题目：New Mechanism Resolving the Information Missing Puzzle

报告时间：2022年5月16日周一下午15:00 2022年5月19日周四上午10:00

腾讯ID：646 1697 2719

报告摘要：

To understand how information is carried away by hawking particles from no-hair blackholes is a fundamental question in modern gravitation and quantum physics research. We will introduce in this talk the new idea of gravitation induced spontaneous radiation as an alternative mechanism for hawking radiation and resolutions to the information missing puzzle. Unlike Starobinski \& Unruh's spontaneous radiation happens only to charged or rotational blackholes, our radiation happens to all kinds of blackhole and requires only their inner structures or microscopic states embodied in the Bekenstein-Hawking entropy as basis. It happens when such inner structures change. We will provide an explicitly hermitian hamiltonian description for such a spontaneous radiation. By Wigner-Wiesskopf approximation, we will show that such a radiation has thermal spectrum exactly the same as hawking radiation; while through numerics, we will show that variations of the radiation products' entropy exhibits all features of Page curve as expected. We will also provide exact and analytic solutions to the sourceful Einstein equation describing inner structures required by our radiation mechanism and show that, after quantization the degeneracy of wave functions corresponding with those solutions are consistent with the area law formula naturally. Our talk will be divided into two sections, each lasts 1.5hours around, including presentation and discussion.

报告人简介：

曾定方，北京工业大学副教授、博士研究生导师。先后主持国家自然科学基金一项、北京市自然科学基金1项，在研理论物理国家重点实验室开放课题一项,作为主要成员参加国家自然科学基金2项，提出设想并成功找到描述黑洞内容物在其内部对穿振荡从而为其微观态提供半经典解释的Einstein场方程严格解,这种设想也同时为黑洞信息丢失疑难的解决以及在经典和量子水平上史瓦西奇点的消解提供了可能的方案。在Phys.Rev.D, Phys. Lett. B, JHEP, CQG，CTP等国内外刊物发表论文40余篇。