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Chiral Symmetry Breaking and Restoration in (2+1) Dimensions from Holography: Magnetic and Inverse Magnetic Catalysis

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arxiv 1807.11822 v2 pith:FS7M7WR7 submitted 2018-07-31 hep-th hep-ph

classification hep-thhep-ph
keywords magneticchiralmodelsoftwallbreakingcatalysisfindmodels
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We study the chiral symmetry breaking and restoration in $ (2+1) $-dimensional gauge theories from the holographic hard and softwall models. We describe the behavior of the chiral condensate in the presence of an external magnetic field for both models at finite temperature. For the hardwall model we find Magnetic Catalysis (MC) in different set ups. For the softwall model we find Inverse Magnetic Catalysis (IMC) and MC in different situations. We also find for the softwall model a crossover transition from IMC to MC at a pseudocritical magnetic field. This study also shows spontaneous symmetry breaking for both models. Interestingly, for $B=0$ in the softwall model we found a nontrivial expectation value for the chiral condensate.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Scaling functions in the soft-wall AdS/QCD models

    hep-ph 2025-07 conditional novelty 5.0 of 10

    Soft-wall AdS/QCD models reproduce mean-field chiral scaling functions and follow a T_c scaling law whose slope, tuned by a modified potential, can approach Dyson-Schwinger results.

  2. Dynamics of chiral phase transition in a $N_f=2+1$ soft-wall AdS/QCD model

    hep-ph 2025-07 conditional novelty 4.0 of 10

    In a 2+1 flavor soft-wall AdS/QCD model, the chiral condensate exhibits slow, non-trivial relaxation with a metastable plateau or overshoot when quenched close to the phase transition.

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