# Closed string tachyons in a smooth curved background

@article{Bordalo2005ClosedST, title={Closed string tachyons in a smooth curved background}, author={Pedro Bordalo}, journal={arXiv: High Energy Physics - Theory}, year={2005} }

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…

## References

SHOWING 1-10 OF 17 REFERENCES

### Localized Tachyons and RG Flows

- Mathematics
- 2001

We study condensation of closed string tachyons living on defects, such as orbifold fixed planes and Neveu-Schwarz fivebranes. We argue that the high energy density of localized states decreases in…

### Rotating NS5-brane solution and its exact string theoretical description

- Mathematics, Physics
- 1999

We construct the most general solution in type-II string theory that represents N coincident non-extremal rotating NS5-branes and determine the relevant thermodynamic quantities. We show that in the…

### Don't Panic! Closed String Tachyons in ALE Spacetimes

- Mathematics, Physics
- 2001

We consider closed string tachyons localized at the fixed points of noncompact nonsupersymmetric orbifolds. We argue that tachyon condensation drives these orbifolds to flat space or supersymmetric…

### Comments on string theory on AdS(3)

- Physics
- 1998

We study string propagation on $AdS_3$ times a compact space from an ``old fashioned'' worldsheet point of view of perturbative string theory. We derive the spacetime CFT and its Virasoro and current…

### Little string theory in a double scaling limit

- Physics, Mathematics
- 1999

A double scaling limit can be defined in string theory on a Calabi-Yau (CY) manifold by approaching a point in moduli space where the CY space develops an isolated singularity and at the same time…

### Non-BPS States and Branes in String Theory

- Mathematics
- 1999

We review the recent developments in our understanding of non-BPS states and branes in string theory. The topics include 1) construction of unstable non-BPS D-branes in type IIA and type IIB string…

### Defects, Decay, And Dissipated States

- Physics
- 2002

Vacuum selection is one of the most important issues in string/M theory. The standard cartoon of string vacua (see figure 1) showing all the ten dimensional perturbative string asymptopia together…