Tachyon condensation on separated brane-antibrane system

Bagchi, Arjun ; Sen, Ashoke (2008) Tachyon condensation on separated brane-antibrane system Journal of High Energy Physics, 2008 (5). No pp. given. ISSN 1126-6708

[img]
Preview
PDF - Author Version
280kB

Official URL: http://iopscience.iop.org/1126-6708/2008/05/010?fr...

Related URL: http://dx.doi.org/10.1088/1126-6708/2008/05/010

Abstract

We study the effect of tachyon condensation on a brane antibrane pair in superstring theory separated in the transverse direction. The static properties of the tachyon potential analyzed using level truncated string field theory reproduces the desired property that the dependence of the minimum value of the potential on the initial distance of separation between the branes decreases as we include higher level terms. The rolling tachyon solution constructed using the conformal field theory methods shows that if the initial separation between the branes is less than a critical distance then the solution is described by an exactly marginal deformation of the original conformal field theory where the correlation functions of the deformed theory are determined completely in terms of the correlation functions of the undeformed theory without any need to regularize the theory. Using this we give an expression for the pressure on the brane-antibrane system as a power series expansion in exp(Cx0) for an appropriate constant C.

Item Type:Article
Source:Copyright of this article belongs to Institute of Physics.
Keywords:String Field Theory; Tachyon Condensation
ID Code:43983
Deposited On:20 Jun 2011 06:12
Last Modified:18 May 2016 00:47

Repository Staff Only: item control page