Phases of Holographic QCD

Matthew Lippert

doi:10.1016/j.nuclphysa.2009.05.080

Phases of Holographic QCD

Matthew Lippert

Chemistry and Physics

Old Westbury

Research output: Contribution to journal › Article › peer-review

Abstract

We investigated the Sakai-Sugimoto model of large N QCD at nonzero temperature and baryon chemical potential and in the presence of background electric and magnetic fields. We studied the holographic representation of baryons and the deconfinement, chiral-symmetry breaking, and nuclear matter phase transitions. In a background electric field, chiral-symmetry breaking corresponds to an insulator-conductor transition. A magnetic field both catalyzes chiral-symmetry breaking and generates, in the confined phase, a pseudo-scalar gradient or, in the deconfined phase, an axial current. The resulting phase diagram is in qualitative agreement with studies of hot, dense QCD.

Original language	English
Pages (from-to)	371c-373c
Journal	Nuclear Physics A
Volume	827
Issue number	1-4
DOIs	https://doi.org/10.1016/j.nuclphysa.2009.05.080
State	Published - Aug 15 2009

Keywords

QCD phase diagram
gauge/string duality

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10.1016/j.nuclphysa.2009.05.080

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AB - We investigated the Sakai-Sugimoto model of large N QCD at nonzero temperature and baryon chemical potential and in the presence of background electric and magnetic fields. We studied the holographic representation of baryons and the deconfinement, chiral-symmetry breaking, and nuclear matter phase transitions. In a background electric field, chiral-symmetry breaking corresponds to an insulator-conductor transition. A magnetic field both catalyzes chiral-symmetry breaking and generates, in the confined phase, a pseudo-scalar gradient or, in the deconfined phase, an axial current. The resulting phase diagram is in qualitative agreement with studies of hot, dense QCD.

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KW - gauge/string duality

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VL - 827

SP - 371c-373c

JO - Nuclear Physics A

JF - Nuclear Physics A

IS - 1-4

ER -

Phases of Holographic QCD

Abstract

Keywords

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