[学术报告] [周洋(复旦大学)] 黑洞的信息丢失了吗?Page curve from holography

发布时间:2021-10-18浏览次数:274

题目:黑洞的信息丢失了吗?Page curve from holography

报告人:周洋(复旦大学)

时间:2021年10月25日14:00

地点:浙江大学紫金港校区西区物理系楼439会议室

摘要:

Black hole information paradox is a problem over 40 years. Recent progress hints towards a new understanding of the late time black hole interior as part of the Hawking radiation, which they called island. In particular the island formula for the radiation entropy gives Page curve and therefore maintains unitarity. In this talk I will discuss how to derive Page curve from holography. We provide an explicit construction of gravity system attached with bath by gluing Randall-Sundrum reduction and Maldacena duality, and find that the holographic counterpart of island formula is the defect extremal surface formula. Our approach hints towards an origin of the holographic nature of black holes as well as our universe.

报告人简介:

周洋,复旦大学物理学系副教授。2011年毕业于中国科学院理论物理研究所,获理论物理博士学位。先后在韩国量子时空中心、以色列特拉维夫大学从事博士后研究。2017年10月回国加入复旦大学物理学系。主要研究方向为非微扰量子场论、量子引力和量子信息。近年的主要研究成果有:精确计算了不同维数量子场论的非微扰纠缠结构,并发现其全息对偶于极端拓扑黑洞;基于复本技术提出了量子场论中可计算的多体关联熵并发现其全息对应;在2020年提出了混态黑洞体系信息悖论的解决方案,并提出霍金辐射岛公式的全息对应。