Flavor-symmetry Breaking with Charged Probes

Details Flavor-symmetry Breaking with Charged Probes Flavor-symmetry Breaking with Charged Probes

2011-09-22

arxiv.org/abs/1109.4952v2

Physics

High Energy Physics

High Energy Physics - Theory

21 pages, 10 figures

Scientific paper

We discuss the recombination of brane/anti-brane pairs carrying $D3$ brane charge in $AdS_5 \times S^5$. These configurations are dual to co-dimension one defects in the ${\cal N}=4$ super-Yang-Mills description. Due to their $D3$ charge, these defects are actually domain walls in the dual gauge theory, interpolating between vacua of different gauge symmetry. A pair of unjoined defects each carry localized $(2+1)$ dimensional fermions and possess a global $U(N)\times U(N)$ flavor symmetry while the recombined brane/anti-brane pairs exhibit only a diagonal U(N). We study the thermodynamics of this flavor-symmetry breaking under the influence of external magnetic field.

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