Moduli space of unstable D-branes on a circle of critical radius

Sen, Ashoke (2004) Moduli space of unstable D-branes on a circle of critical radius Journal of High Energy Physics, 2004 (3). No pp. given. ISSN 1126-6708

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Official URL: http://iopscience.iop.org/1126-6708/2004/03/070?fr...

Related URL: http://dx.doi.org/10.1088/1126-6708/2004/03/070

Abstract

We study the moduli space of the boundary conformal field theories describing an unstable D-brane of type-II string theory compactified on a circle of critical radius. This moduli space has two branches-a three dimensional branch S3/Z2 and a two dimensional branch described by a square torus T2. These two branches are joined along a circle. We compare this with the moduli space of classical solutions of tachyon effective field theory compactified on a circle of critical radius. This moduli space has a very similar structure to that of the boundary conformal field theory with the only difference that the S3 of the S3/Z2 component becomes a deformed S3. This provides one more indication that the tachyon effective field theory captures qualitatively the dynamics of the tachyon on an unstable D-brane.

Item Type:Article
Source:Copyright of this article belongs to Institute of Physics.
Keywords:Tachyon Condensation; D-branes
ID Code:44014
Deposited On:20 Jun 2011 07:39
Last Modified:18 May 2016 00:49

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