Criticality, scaling and chiral symmetry breaking in external magnetic field
Jun, 2007Citations per year
Abstract: (arXiv)
We consider a D7-brane probe of in the presence of pure gauge -field. The dual gauge theory is flavored Yang-Mills theory in external magnetic field. We explore the dependence of the fermionic condensate on the bare quark mass and study the discrete self-similar behavior of the theory near the origin of the parametric space. We calculate the critical exponents of the bare quark mass and the fermionic condensate. A study of the meson spectrum supports the expectation based on thermodynamic considerations that at zero bare quark mass the stable phase of the theory is a chiral symmetry breaking one. Our study reveals the self-similar structure of the spectrum near the critical phase of the theory, characterized by zero fermionic condensate and we calculate the corresponding critical exponent of the meson spectrum.- space-time: anti-de Sitter
- space: S(5)
- dimension: 10
- membrane model: D-brane
- membrane model: p-brane
- p-brane: 7
- magnetic field: external field
- scaling
- critical phenomena
- meson
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