Non-BPS D-branes on a Calabi-Yau orbifold

Majumder, Jaydeep ; Sen, Ashoke (2000) Non-BPS D-branes on a Calabi-Yau orbifold Journal of High Energy Physics, 2000 (9). No pp. given. ISSN 1126-6708

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Official URL: http://iopscience.iop.org/1126-6708/2000/09/047?fr...

Related URL: http://dx.doi.org/10.1088/1126-6708/2000/09/047

Abstract

A system containing a pair of non-BPS D-strings of type-IIA string theory on an orbifold, representing a single D2-brane wrapped on a non-supersymmetric 2-cycle of a Calabi-Yau 3-fold with (h(1,1),h(1,2))=(11,11), is analyzed. In certain region of the moduli space the configuration is stable. We show that beyond the region of stability the system can decay into a pair of non-BPS D3-branes. At one point on the boundary of the region of stability, there exists a marginal deformation which connects the system of non-BPS D-strings to the system of non-BPS D3-branes. Across any other point on the boundary of the region of stability, the transition from the system of non-BPS D-strings to the system of non-BPS D3-branes is first order. We discuss the phase diagram in the moduli space for these configurations.

Item Type:Article
Source:Copyright of this article belongs to Institute of Physics.
Keywords:Superstrings and Heterotic Strings; D-branes; Conformal Field Models in String Theory
ID Code:44029
Deposited On:20 Jun 2011 07:58
Last Modified:18 May 2016 00:50

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