Soft hair of dynamical black hole and Hawking radiation
Abstract Soft hair of black hole has been proposed recently to play an important role in the resolution of the black hole information paradox. Recent work has emphasized that the soft modes cannot affect the black hole S-matrix due to Weinberg soft theorems. However as soft hair is generated by supe...
Main Authors: | , |
---|---|
Format: | Article |
Language: | English |
Published: |
SpringerOpen
2018-04-01
|
Series: | Journal of High Energy Physics |
Subjects: | |
Online Access: | http://link.springer.com/article/10.1007/JHEP04(2018)056 |
id |
doaj-8c206eee5c1641adab2fd71062fad6f1 |
---|---|
record_format |
Article |
spelling |
doaj-8c206eee5c1641adab2fd71062fad6f12020-11-25T01:10:28ZengSpringerOpenJournal of High Energy Physics1029-84792018-04-012018412310.1007/JHEP04(2018)056Soft hair of dynamical black hole and Hawking radiationChong-Sun Chu0Yoji Koyama1Physics Division, National Center for Theoretical Sciences, National Tsing-Hua UniversityPhysics Division, National Center for Theoretical Sciences, National Tsing-Hua UniversityAbstract Soft hair of black hole has been proposed recently to play an important role in the resolution of the black hole information paradox. Recent work has emphasized that the soft modes cannot affect the black hole S-matrix due to Weinberg soft theorems. However as soft hair is generated by supertranslation of geometry which involves an angular dependent shift of time, it must have non-trivial quantum effects. We consider supertranslation of the Vaidya black hole and construct a non-spherical symmetric dynamical spacetime with soft hair. We show that this spacetime admits a trapping horizon and is a dynamical black hole. We find that Hawking radiation is emitted from the trapping horizon of the dynamical black hole. The Hawking radiation has a spectrum which depends on the soft hair of the black hole and this is consistent with the factorization property of the black hole S-matrix.http://link.springer.com/article/10.1007/JHEP04(2018)056Black HolesSpace-Time Symmetries |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Chong-Sun Chu Yoji Koyama |
spellingShingle |
Chong-Sun Chu Yoji Koyama Soft hair of dynamical black hole and Hawking radiation Journal of High Energy Physics Black Holes Space-Time Symmetries |
author_facet |
Chong-Sun Chu Yoji Koyama |
author_sort |
Chong-Sun Chu |
title |
Soft hair of dynamical black hole and Hawking radiation |
title_short |
Soft hair of dynamical black hole and Hawking radiation |
title_full |
Soft hair of dynamical black hole and Hawking radiation |
title_fullStr |
Soft hair of dynamical black hole and Hawking radiation |
title_full_unstemmed |
Soft hair of dynamical black hole and Hawking radiation |
title_sort |
soft hair of dynamical black hole and hawking radiation |
publisher |
SpringerOpen |
series |
Journal of High Energy Physics |
issn |
1029-8479 |
publishDate |
2018-04-01 |
description |
Abstract Soft hair of black hole has been proposed recently to play an important role in the resolution of the black hole information paradox. Recent work has emphasized that the soft modes cannot affect the black hole S-matrix due to Weinberg soft theorems. However as soft hair is generated by supertranslation of geometry which involves an angular dependent shift of time, it must have non-trivial quantum effects. We consider supertranslation of the Vaidya black hole and construct a non-spherical symmetric dynamical spacetime with soft hair. We show that this spacetime admits a trapping horizon and is a dynamical black hole. We find that Hawking radiation is emitted from the trapping horizon of the dynamical black hole. The Hawking radiation has a spectrum which depends on the soft hair of the black hole and this is consistent with the factorization property of the black hole S-matrix. |
topic |
Black Holes Space-Time Symmetries |
url |
http://link.springer.com/article/10.1007/JHEP04(2018)056 |
work_keys_str_mv |
AT chongsunchu softhairofdynamicalblackholeandhawkingradiation AT yojikoyama softhairofdynamicalblackholeandhawkingradiation |
_version_ |
1725174501085282304 |