# Is a classical description of stable non-BPS D-branes possible?☆

@article{Bertolini2000IsAC, title={Is a classical description of stable non-BPS D-branes possible?☆}, author={Matteo Bertolini and Paolo Di Vecchia and Marialuisa Frau and Alberto Lerda and Raffaele Marotta and Rodolfo Russo}, journal={Nuclear Physics}, year={2000}, volume={590}, pages={471-503} }

Abstract We study the classical geometry produced by a stack of stable (i.e., tachyon-free) non-BPS D-branes present in K3 compactifications of type II string theory. This classical representation is derived by solving the equations of motion describing the low-energy dynamics of the supergravity fields which couple to the non-BPS state. Differently from what expected, this configuration displays a singular behaviour: the space–time geometry has a repulson -like singularity. This fact suggests… Expand

#### 39 Citations

Taming the supergravity description of non-BPS D-branes: the D/anti-D solution

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We obtain the supergravity solution which describes a bound state of D-string/anti-D-string pairs attached to different fixed planes of an orbifold, in type-IIB string theory compactified on T4/2.… Expand

Stable non-BPS D-Branes and their Classical Description

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We review how to describe the stable non-BPS D-branes of type II string theory from a classical perspective, and discuss the properties of the space-time geometry associated to these configurations.… Expand

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Abstract By looking at fractional Dp-branes of type IIA on T4/Z2 as wrapped branes and by using boundary state techniques we construct the effective low-energy action for the fields generated by… Expand

Static, non-SUSY p-branes in diverse dimensions

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We give explicit constructions of static, non-supersymmetric p-brane (for p• di 4, where d is the space-time dimensionality and including p = i1 or D-instanton) solutions of type II supergravities in… Expand

MORE ON GENERAL p-BRANE SOLUTIONS

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Recently it was found that the complete integration of the Einstein-dilaton-antisymmetric form equations depending on one variable and describing static singly charged p-branes leads to two and only… Expand

N = 2 gauge theories on systems of fractional D3/D7-branes

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We study a bound state of fractional D3/D7-branes in the ten-dimensional space R1,5×R4/Z2 using the boundary state formalism. We construct the boundary actions for this system and show that… Expand

Delocalized, non-SUSY p-branes, tachyon condensation and tachyon matter

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We construct non-supersymmetricp-brane solutions of type II supergravities in arbitrary dimensions (d) delocalized in one of the spatial transverse directions. By a Wick rotation we convert these… Expand

Fractional D3-branes in diverse backgrounds

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In the first part of this article, we find fractional D3-branes supergravity solutions on orientifolded C^2/Z_2 orbifolds of type IIB string theory. The one-loop corrected gauge couplings for the… Expand

Microscopic formulation of black holes in string theory

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Abstract In this report we review the microscopic formulation of the five-dimensional black hole of type IIB string theory in terms of the D1–D5 brane system. The emphasis here is more on the brane… Expand

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In this set of lectures various properties of D-branes are discussed. After reviewing the basics, we discuss unstable D-brane/anti-D-brane systems, a subject pioneered by Sen. Following him, we… Expand