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Closed string tachyons in a smooth curved background

Pedro Bordalo
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Abstract

Closed string tachyon condensation has been studied in orbifolds C^2/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 C^2/Z_{N,p}, corresponding to condensation processes similar to those of hep-th/0111154. We also study level-dependent chiral tachyons.

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Pedro Bordalo. 2005-06-01. Closed string tachyons in a smooth curved background. https://arxiv.org/abs/hep-th/0506007

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