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BPS Fivebrane Stars II: Fluctuations
Emil J. Martinec, Yoav Zigdon
We investigate quantum fluctuations of metric components in coherent 1/2-BPS bound states of fundamental strings and NS5-branes. The leading order contribution in an ex…
BPS Fivebrane Stars I: Expectation Values of Observables
Emil J. Martinec, Yoav Zigdon
We study ensembles of 1/2-BPS bound states of fundamental strings and NS-fivebranes (NS5-F1 states) in the AdS decoupling limit. We revisit a solution corresponding to an ensemble…
AdS3 Orbifolds, BTZ Black Holes, and Holography
Emil J. Martinec
Conical defects of the form have an exact orbifold description in worldsheet string theory, which we derive from their known presentation as gauged Wess-Zum…
Charge currents, rare decays, and black holes
Emil J. Martinec
Radiation of conserved charges carried by a black hole is a rare process, whose probability is suppressed by the change in the entropy between the initial and final states. This un…
The Holar Wind
Emil J. Martinec
String theory in AdS3 with purely NS-NS fluxes and vanishing RR moduli has a continuum of winding string excitations in radial plane wave states. BTZ black holes can emit such stri…