String dynamics in NS5-F1-P geometries

Abstract

String theory dynamics on certain fivebrane supertube backgrounds is described by an exactly solvable null-gauged WZW model. We use this description to compute the spectrum of closed string excitations on the three-charge non-supersymmetric solution found by Jejjala, Madden, Ross and Titchener, as well as its supersymmetric limit. The low-lying spectrum matches that of supergravity modes in the effective geometry and exhibits an underlying group-theoretic structure. Winding sectors describe strings carrying the same charges as the background; processes whereby strings turn into flux or vice-versa are mediated by large gauge transformations on the worldsheet. The S-matrix of such wound strings probes microstructure of the fivebrane source that is hidden in the supergravity approximation.

54 pages; version published in JHEP

References in corpus (12)

• Fuzzballs with internal excitations
• Radiation from the non-extremal fuzzball
• Asymptotically-flat supergravity solutions deep inside the black-hole regime
• D1-D5-P microstates at the cap
• Instability of supersymmetric microstate geometries
• Emission from the D1D5 CFT
• Effect of the deformation operator in the D1D5 CFT
• Pair creation in non-extremal fuzzball geometries
• Effect of the twist operator in the D1D5 CFT
• Bolting Multicenter Solutions
• Floating JMaRT
• Two Kissing Bolts

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• Supercharged AdS${}_3$ Holography
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• Black hole microstates from the worldsheet
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• Worldsheet computation of heavy-light correlators
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• Shockwaves in black hole microstate geometries
• A proof for string three-point functions in AdS${}_3$
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• Wrapped Fivebranes Redux
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• Black Holes and the Swampland: the Deep Throat revelations
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• Superstrata on Orbifolded Backgrounds
• Evolutionary algorithms for multi-center solutions
• Lecture notes on strings in AdS${}_3$ from the worldsheet and the AdS${}_3$/CFT${}_2$ duality