Winding tachyons in BTZ

Details Winding tachyons in BTZ Winding tachyons in BTZ

2007-06-05

arxiv.org/abs/0706.0663v3

Phys.Rev.D77:026010,2008

Physics

High Energy Physics

High Energy Physics - Theory

37 pages, no figures; v2: references added; v3: ref added, minor corrections, final journal version

Scientific paper

10.1103/PhysRevD.77.026010

Analysing closed string tachyon condensation will improve our understanding of spacetime in string theory. We study the string spectrum on a BTZ black hole spacetime supported by NS-NS flux, which provides a calculable example where we would expect to find a quasi-localised 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 NS-NS B field, this tachyon is not localised 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.

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