9 citations · 11 across the 2 of their papers we have counts for
6 papers
On decay of Bulk Tachyons
Takao Suyama
We investigate a decay of a bulk tachyon with a Kaluza-Klein momentum in bosonic and Type 0 string theories compactified on S^1. Potential for the tachyon has a (local) minimum. A…
Target Space Approach to Closed String Tachyons
Takao Suyama
We use the low energy effective theory of string theory to investigate condensations of closed string tachyons propagating in the bulk. The c-function is related to the total energ…
BPS Vortices in Brane-Antibrane Effective Theory
Takao Suyama
We investigate an action which resembles the effective action of brane-antibrane system derived from boundary string field theory. We find that the action has smooth vortex solutio…
A Note on Singular Black Holes
Takao Suyama
We reconsider entropy of black holes which do not have finite area horizon. It is suggested that some of them should have nonzero entropy from both supergravity and string theory p…
BPS D-branes after Tachyon Condensation
Takao Suyama
We construct an effective action describing brane-antibrane system containing N D-branes and N \bar{D}-branes. BPS equations for remaining D-branes after tachyon condensation are d…
Intersecting Branes and Generalized Vortices
Takao Suyama
We construct the effective theory of intersecting branes and investigate the BPS monopoles in the theory. The monopoles obtained are the generalization of Nielsen-Olesen vortex. We…