报告题目：Holographic Pseudo Entropy

报告人：魏子夏（京都大学）

报告时间：2020 年 7 月 2 日（周四）10：00

报告地点：在线报告（ 腾讯会议 ID : 269 545 461）

报告摘要：

 A quantity, called pseudo entropy, is introduced as a generalization of entanglement entropy via post-selection in general quantum systems. This quantity is defined from 2 pure quantum states and an arbitrary bipartite factorization of the whole system. Pseudo entropy in qubit systems, quantum field theory and AdS/CFT will be discussed. Especially, pseudo entropy in holographic CFTs is dual to areas of minimal surfaces in time-dependent Euclidean spaces which are asymptotically AdS. If time allows, I will also talk about an operational meaning of pseudo entropy for a special class of quantum states and a generalization for mixed states. In the AdS/CFT context, pseudo entropy turns out to be a novel quantity to characterize holographic states. Possible applications in other fields will also be discussed in the end.

报告人简介：魏子夏，2018年本科毕业于日本东京大学，现在日本京都大学汤川基础物理学研究所（Yukawa Institute for Theoretical Physics）攻读博士学位，研究兴趣为AdS/CFT对偶理论与量子信息。

参考文献：

[1]  Y. Nakata, T. Takayanagi, Y. Taki, K. Tamaoka, Z. Wei, “Holographic Pseudo Entropy”, arXiv: 2005.13801

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