Kavli Affiliate: Emil J. Martinec
| First 5 Authors: Emil J. Martinec, Yoav Zigdon, , ,
| 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.
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