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题名: Excitation entanglement entropy in two dimensional conformal field theories
作者: Sheikh-Jabbari, MM ;  Yavartanoo, H
刊名: PHYSICAL REVIEW D
出版日期: 2016
卷号: 94, 期号:12, 页码:126006
学科分类: Astronomy & Astrophysics; Physics
DOI: http://dx.doi.org/10.1103/PhysRevD.94.126006
通讯作者: Sheikh-Jabbari, MM (reprint author), Inst Res Fundamental Sci IPM, Sch Phys, POB 19395-5531, Tehran 1953833511, Iran.
文章类型: Article
英文摘要: We analyze how excitations affect the entanglement entropy for an arbitrary entangling interval in a 2d conformal field theory (CFT) using the holographic entanglement entropy techniques as well as direct CFT computations. We introduce the excitation entanglement entropy.hS, the difference between the entanglement entropy generic excitations and their arbitrary conformal descendants denoted through h. The excitation entanglement entropy, unlike the entanglement entropy, is a finite quantity (independent of the cutoff), and hence a good physical observable. We show that the excitation entanglement entropy for any given interval is uniquely specified by a local second order differential equation sourced by the one point function of the energy momentum tensor computed in the excited background state, and two boundary and smoothness conditions. We analyze low and high temperature behavior of the excitation entanglement entropy and show that Delta S-h grows as a function of temperature. We prove an "integrated positivity" for the excitation entanglement entropy, that although Delta S-h can be positive or negative, its average value is always positive. We also discuss the mutual and multipartite information and (strong) subadditivity inequality in the presence of generic excitations and their conformal descendants.
类目[WOS]: Astronomy & Astrophysics ;  Physics, Particles & Fields
关键词[WOS]: COADJOINT ORBITS ;  GEOMETRY ;  CHARGES ;  GRAVITY
收录类别: SCI
项目资助者: Allameh Tabatabaii Prize Grant of Boniad Melli Nokhbegan of Iran ;  SarAmadan grant of Iranian vice presidency in science and technology ;  ICTP Network Project [NET-68] ;  ICTP Simons fellowship
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21461
Appears in Collections:理论物理所2016年知识产出_期刊论文

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Sheikh-Jabbari, MM,Yavartanoo, H. Excitation entanglement entropy in two dimensional conformal field theories[J]. PHYSICAL REVIEW D,2016,94(12):126006.
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