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Little strings, long strings, and fuzzballs

Little strings, long strings, and fuzzballs
Little strings, long strings, and fuzzballs
At high energy densities, fivebranes are populated by a Hagedorn phase of so-called "little strings", whose statistical mechanics underlies black fivebrane thermodynamics. A particular limit of this phase yields BTZ black holes in AdS_3, leading us to the idea that in this context fuzzballs and highly excited little strings are one and the same. We explore these ideas through an analysis of D-brane probes of fivebrane supertube backgrounds. String theory dynamics on these backgrounds is described by an exactly solvable null-gauged WZW model. We develop the formalism of null gauging on worldsheets with boundaries, and find that D-branes wrapping topology at the bottom of the supertube throat are avatars of the "long string" structure that dominates the thermodynamics of the black hole regime, appearing here as excitations of supertubes lying near but slightly outside the black hole regime.
1029-8479
1-79
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.
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 (2019) Little strings, long strings, and fuzzballs. Journal of High Energy Physics, 1-79, [19]. (doi:10.1007/JHEP11(2019)019).

Record type: Article

Abstract

At high energy densities, fivebranes are populated by a Hagedorn phase of so-called "little strings", whose statistical mechanics underlies black fivebrane thermodynamics. A particular limit of this phase yields BTZ black holes in AdS_3, leading us to the idea that in this context fuzzballs and highly excited little strings are one and the same. We explore these ideas through an analysis of D-brane probes of fivebrane supertube backgrounds. String theory dynamics on these backgrounds is described by an exactly solvable null-gauged WZW model. We develop the formalism of null gauging on worldsheets with boundaries, and find that D-branes wrapping topology at the bottom of the supertube throat are avatars of the "long string" structure that dominates the thermodynamics of the black hole regime, appearing here as excitations of supertubes lying near but slightly outside the black hole regime.

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1906.11473v2 - Accepted Manuscript
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Martinec2019_Article_LittleStringsLongStringsAndFuz - Version of Record
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More information

Accepted/In Press date: 10 October 2019
e-pub ahead of print date: 5 November 2019
Published date: 5 November 2019

Identifiers

Local EPrints ID: 436312
URI: http://eprints.soton.ac.uk/id/eprint/436312
ISSN: 1029-8479
PURE UUID: 53ecf49b-82c5-4b81-aeda-8f0a0d52b058
ORCID for David Turton: ORCID iD orcid.org/0000-0002-9902-2116

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Date deposited: 06 Dec 2019 17:30
Last modified: 29 Jul 2020 01:48

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