A gravity dual of chiral symmetry breaking
Babington, J., Erdmenger, J., Evans, N.J., Guralnik, Z. and Kirsch, I. (2004) A gravity dual of chiral symmetry breaking. Fortschritte der Physik, 52, (6-7), 578-582. (doi:10.1002/prop.200310147).
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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 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.
|Subjects:||Q Science > QC Physics|
|Divisions:||University Structure - Pre August 2011 > School of Physics and Astronomy
|Date Deposited:||13 Aug 2008|
|Last Modified:||01 Jun 2011 09:33|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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