A Gravity Dual of Chiral Symmetry Breaking
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 \bar\psi\psi condensate 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.
Cite
@article{arxiv.hep-th/0312263,
title = {A Gravity Dual of Chiral Symmetry Breaking},
author = {J. Babington and J. Erdmenger and N. Evans and Z. Guralnik and I. Kirsch},
journal= {arXiv preprint arXiv:hep-th/0312263},
year = {2009}
}
Comments
Talk given by I.K. at 36th International Symposium Ahrenshoop on the Theory of Elementary Particles: Recent Developments in String/M-Theory and Field Theory, Berlin, Germany, 26-30 Aug 2003, to appear in Fortsch.Phys