Page curve under final state projection

被引：31

作者：

Akal, Ibrahim ^{[1
]}

Kawamoto, Taishi ^{[1
]}

Ruan, Shan-Ming ^{[1
]}

Takayanagi, Tadashi ^{[1
,2
,3
]}

Wei, Zixia ^{[1
]}

机构：

[1] Kyoto Univ, Yukawa Inst Theoret Phys, Ctr Gravitat Phys & Quantum Informat, Sakyo Ku, Kyoto 6068502, Japan

[2] Inamori Res Inst Sci, Shimogyo Ku, 620 Suiginya Cho, Kyoto 6008411, Japan

[3] Univ Tokyo, Kavli Inst Phys & Math Universe, Kashiwa, Chiba 2778582, Japan

来源：

PHYSICAL REVIEW D | 2022年 / 105卷 / 12期

关键词：

D O I：

10.1103/PhysRevD.105.126026

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The black hole singularity plays a crucial role in formulating Hawking???s information paradox. The global spacetime analysis may be reconciled with unitarity by imposing a final state boundary condition on the spacelike singularity. Motivated by the final state proposal, we explore the effect of final state projection in two dimensional conformal field theories. We calculate the time evolution under postselection by employing the real part of pseudoentropy to estimate the amount of quantum entanglement averaged over histories between the initial and final states. We find that this quantity possesses a Page -curve-like behavior.

引用

页数：9

共 48 条

[1]

Rajabpour MA, 2016, Arxiv, DOI arXiv:1503.07771

[2] UNIVERSAL NONINTEGER GROUND-STATE DEGENERACY IN CRITICAL QUANTUM-SYSTEMS [J].