Closed string tachyons in a smooth curved background

2005/06/01 by Pedro Bordalo, Bordalo, Pedro
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #Nonlinear Waves and Solitons #hep-th

paper · pdf · doi:10.48550/arxiv.hep-th/0506007

11 pages, 1 figure

arxiv created 2005/06/01 · openalex publication_date 2005/06/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Closed string tachyon condensation has been studied in orbifolds C²/Z_N,p of flat space, using the chiral ring of the underlying N=2 conformal field theory. Here we show that similar phenomena occur in the curved smooth background obtained by adding NS5-branes, such that chiral tachyons are localised on lens submanifolds SU(2)/Z_N,p. We find a level-independent subring which coincides with that of C²/Z_N,p, corresponding to condensation processes similar to those of hep-th/0111154. We also study level-dependent chiral tachyons.

Related

• Localized Tachyons and RG Flows
• Tachyons, Boundary Interactions, and the Genus Expansion in String Theory
• Condensation de tachyon dans le système brane-antibrane
• Tachyon condensation at one loop
• Closed String Tachyons, Non-Supersymmetric Orbifolds and Generalised McKay Correspondence