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Black holes from large N singlet models

Black holes from large N singlet models

Title: Black holes from large N singlet models
Author: Amado, Irene
Sundborg, Bo
Thorlacius, Larus   orcid.org/0000-0002-8180-9607
Wintergerst, Nico
Date: 2018-03
Language: English
Scope: 075
University/Institute: Háskóli Íslands
University of Iceland
School: Verkfræði- og náttúruvísindasvið (HÍ)
School of Engineering and Natural Sciences (UI)
Department: Raunvísindastofnun (HÍ)
Science Institute (UI)
Series: Journal of High Energy Physics;2018(3)
ISSN: 1126-6708
1029-8479 (eISSN)
DOI: 10.1007/JHEP03(2018)075
Subject: AdS-CFT Correspondence; Black Holes in String Theory; Higher Spin Gravity; Confinement; Svarthol (stjörnufræði); Strengjafræði
URI: https://hdl.handle.net/20.500.11815/914

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Amado, I., Sundborg, B., Thorlacius, L., & Wintergerst, N. (2018). Black holes from large N singlet models. Journal of High Energy Physics, 2018(3), 75. doi:10.1007/jhep03(2018)075


The emergent nature of spacetime geometry and black holes can be directly probed in simple holographic duals of higher spin gravity and tensionless string theory. To this end, we study time dependent thermal correlation functions of gauge invariant observables in suitably chosen free large N gauge theories. At low temperature and on short time scales the correlation functions encode propagation through an approximate AdS spacetime while interesting departures emerge at high temperature and on longer time scales. This includes the existence of evanescent modes and the exponential decay of time dependent boundary correlations, both of which are well known indicators of bulk black holes in AdS/CFT. In addition, a new time scale emerges after which the correlation functions return to a bulk thermal AdS form up to an overall temperature dependent normalization. A corresponding length scale was seen in equal time correlation functions in the same models in our earlier work.


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