BPS Fivebrane Stars III: Effective Actions

An effective action for NS5-branes coupled to supergravity is used to derive the full 10d form of horizon-free BPS solutions of fivebranes carrying momentum waves, including both transverse scalar and internal gauge excitations of the branes. When internal modes are highly excited, we find solutions...

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Bibliographic Details
Published in:arXiv.org 2024-11
Main Authors: Martinec, Emil J, Zigdon, Yoav
Format: Article
Language:English
Subjects:
Branes
Bulk density
Decoupling
Gravitons
Supergravity
Online Access:Get full text
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Summary:An effective action for NS5-branes coupled to supergravity is used to derive the full 10d form of horizon-free BPS solutions of fivebranes carrying momentum waves, including both transverse scalar and internal gauge excitations of the branes. When internal modes are highly excited, we find solutions that plausibly mediate the transition between the Coulomb phase of NS5-branes and the black hole phase. We also compute the two-point functions of fivebrane density fluctuations and of gravitons absorbed by the branes. Finally, we begin an exploration of near-BPS perturbations of the fivebrane ensemble, and propose the use of the brane+bulk effective action as a tool to explore the black hole phase, even in the AdS decoupling limit.
ISSN:2331-8422