On the BPS Sector in AdS_3/CFT_2 holography
On the BPS Sector in AdS_3/CFT_2 holography
The BPS sector in AdS_3/CFT_2 duality has been fertile ground for the exploration of gauge/gravity duality, from the match between black hole entropy and the CFT elliptic genus to the construction of large families of geometrical microstates and the identification of the corresponding states in the CFT. Worldsheet methods provide a tool to further explore the relation between string theory in the bulk and corresponding CFT quantities. We show how to match individual BPS strings to their counterparts in the symmetric product orbifold CFT. In the process, we find an exact match between known constructions of microstate geometries and condensates of BPS supergraviton strings, and discuss their role in the broader collection of BPS states. In particular, we explore how microstate geometries develop singularities; and how string theory resolves these singularities through the appearance of ``tensionless'' string dynamics, which is the continuation of structures found in the weak-coupling CFT into the strongly coupled regime described by string theory in the bulk. We argue that such ``tensionless'' strings are responsible for black hole microstructure in the bulk description.
Martinec, Emil J.
650e0325-0c1c-4177-9475-4eaaf978cca8
Massai, Stefano
1ea199a1-6815-405e-a9f0-efadbbc15f48
Turton, David
6ce84b30-3cc0-42aa-ace5-f298d4260e9b
26 April 2023
Martinec, Emil J.
650e0325-0c1c-4177-9475-4eaaf978cca8
Massai, Stefano
1ea199a1-6815-405e-a9f0-efadbbc15f48
Turton, David
6ce84b30-3cc0-42aa-ace5-f298d4260e9b
Martinec, Emil J., Massai, Stefano and Turton, David
(2023)
On the BPS Sector in AdS_3/CFT_2 holography.
Fortschritte der Physik, 71 (4-5), [2300015].
(doi:10.1002/prop.202300015).
Abstract
The BPS sector in AdS_3/CFT_2 duality has been fertile ground for the exploration of gauge/gravity duality, from the match between black hole entropy and the CFT elliptic genus to the construction of large families of geometrical microstates and the identification of the corresponding states in the CFT. Worldsheet methods provide a tool to further explore the relation between string theory in the bulk and corresponding CFT quantities. We show how to match individual BPS strings to their counterparts in the symmetric product orbifold CFT. In the process, we find an exact match between known constructions of microstate geometries and condensates of BPS supergraviton strings, and discuss their role in the broader collection of BPS states. In particular, we explore how microstate geometries develop singularities; and how string theory resolves these singularities through the appearance of ``tensionless'' string dynamics, which is the continuation of structures found in the weak-coupling CFT into the strongly coupled regime described by string theory in the bulk. We argue that such ``tensionless'' strings are responsible for black hole microstructure in the bulk description.
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On the BPS Sector in AdS3 CFT2 Holography
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e-pub ahead of print date: 14 February 2023
Published date: 26 April 2023
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Funding Information:
This work is supported in part by DOE grant DE‐SC0009924. The work of DT was supported by a Royal Society Tata University Research Fellowship. The work of SM is supported by the MIUR program for young researchers “Rita Levi Montalcini”.
Identifiers
Local EPrints ID: 476316
URI: http://eprints.soton.ac.uk/id/eprint/476316
ISSN: 1521-3978
PURE UUID: e6f20206-1bf8-4bfe-8d27-8f98e3646338
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Date deposited: 19 Apr 2023 16:37
Last modified: 17 Mar 2024 03:48
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Author:
Emil J. Martinec
Author:
Stefano Massai
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