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arXiv · hep-th/0312263

A Gravity Dual of Chiral Symmetry Breaking

J. Babington·J. Erdmenger·N. Evans·Z. Guralnik·I. Kirsch
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Abstract

We establish a holographic description of chiral symmetry breaking for a particular confining large N non-supersymmetric gauge theory with matter in the fundamental representation. The gravity dual of this theory is obtained by introducing a D7-brane probe into a deformed Anti-de Sitter background found by Constable and Myers. We numerically compute the \barψψcondensate and meson spectrum by solving the equation of motion of the D7-brane probe in this background. We find a symmetry breaking condensate as well as the associated, pion-like, Goldstone boson in the limit of small quark mass. The existence of the condensate ensures that the D7-brane never reaches the naked singularity at the origin of the deformed AdS space.

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J. Babington, J. Erdmenger, N. Evans, Z. Guralnik, I. Kirsch. 2003-12-22. A Gravity Dual of Chiral Symmetry Breaking. https://doi.org/10.1002/prop.200310147

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