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Title: Notes on entanglement entropy in string theory
Authors: He, Song
Numasawa, Tokiro
Takayanagi, Tadashi
Watanabe, Kento
Author's alias: 高柳, 匡
Keywords: Black Holes in String Theory
AdS-CFT Correspondence
Issue Date: 21-May-2015
Publisher: Springer Berlin Heidelberg
Journal title: Journal of High Energy Physics
Volume: 2015
Issue: 5
Thesis number: 106
Abstract: In this paper, we study the conical entropy in string theory in the simplest setup of dividing the nine dimensional space into two halves. This corresponds to the leading quantum correction to the horizon entropy in string theory on the Rindler space. This entropy is also called the conical entropy and includes surface term contributions. We first derive a new simple formula of the conical entropy for any free higher spin fields. Then we apply this formula to computations of conical entropy in open and closed superstring. In our analysis of closed string, we study the twisted conical entropy defined by making use of string theory on Melvin backgrounds. This quantity is easier to calculate owing to the folding trick. Our analysis shows that the conical entropy in closed superstring is UV finite owing to the string scale cutoff.
Rights: JHEP is an open-access journal funded by SCOAP3 and licensed under CC BY 4.0
URI: http://hdl.handle.net/2433/200664
DOI(Published Version): 10.1007/JHEP05(2015)106
Appears in Collections:Journal Articles

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