2007/06/30 by Mukund Rangamani, Simon F. Ross
Physics and Astronomy · #Astrophysical Phenomena and Observations #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #hep-th
paper · pdf · doi:10.1103/physrevd.77.026010
published as Phys.Rev.D77:026010,2008 · 37 pages, no figures; v2: references added; v3: ref added, minor corrections, final journal version
arxiv created 2007/12/15 · openalex publication_date 2008/01/29 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Analyzing closed string tachyon condensation will improve our understanding of spacetime in string theory. We study the string spectrum on a Banados-Teitelboim-Zanelli black hole spacetime supported by Neveu-Schwarz-Neveu-Schwarz flux, which provides a calculable example where we would expect to find a quasilocalized tachyon. We find that there is a winding tachyon when the black hole horizon is smaller than the string scale, as expected. However, due to effects of the Neveu-Schwarz-Neveu-Schwarz B field, this tachyon is not localized in the region where the spatial circle is string scale. We also discuss the relation to the Milne orbifold in the limit near the singularity.