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A gravity dual of chiral symmetry breaking

✍ Scribed by J. Babington; J. Erdmenger; N. Evans; Z. Guralnik; I. Kirsch

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
111 KB
Volume
52
Category
Article
ISSN
0015-8208

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✦ Synopsis

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.

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Fractal gravity and symmetry breaking in
Fractal gravity and symmetry breaking in a hierachical Cantorian space
✍ M.S. El Naschie πŸ“‚ Article πŸ“… 1997 πŸ› Elsevier Science 🌐 English βš– 685 KB

h this paper we determine the exact expectation value and standard deviation for the dimensionality of a Cantorian spacetime. We show further that the symmetry of the universe is a precondition and the origin of its asymmetry. Connections to time symmetry breaking and the generalization of complex n