Deconfinement and chiral symmetry restoration in a strong magnetic background

Journal Article · Tue Feb 01 04:00:00 EST 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.83.034016· OSTI ID:21504876

Gatto, Raoul ^[1]; Ruggieri, Marco ^[2]

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1. Departement de Physique Theorique, Universite de Geneve, CH-1211 Geneve 4 (Switzerland)
2. Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502 (Japan)

We perform a model study of deconfinement and chiral symmetry restoration in a strong magnetic background. We use a Nambu-Jona-Lasinio model with the Polyakov loop, taking into account a possible dependence of the coupling on the Polyakov-loop expectation value, as suggested by the recent literature. Our main result is that, within this model, the deconfinement and chiral crossovers of QCD in strong magnetic field are entangled even at the largest value of eB considered here, namely eB=30m{sub {pi}}{sup 2} (that is, B{approx_equal}6x10{sup 15} T). The amount of split that we measure is, at this value of eB, of the order of 2%. We also study briefly the role of the 8-quark term on the entanglement of the two crossovers. We then compare the phase diagram of this model with previous results, as well as with available lattice data.

• OSTI ID: 21504876
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 3 Vol. 83; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRAL SYMMETRY
CHIRALITY
COMPARATIVE EVALUATIONS
CONSTRUCTIVE FIELD THEORY
COUPLING
DIAGRAMS
EVALUATION
EXPECTATION VALUE
FERMIONS
FIELD THEORIES
INFORMATION
LATTICE FIELD THEORY
MAGNETIC FIELDS
PARTICLE PROPERTIES
PHASE DIAGRAMS
QUANTUM CHROMODYNAMICS
QUANTUM ENTANGLEMENT
QUANTUM FIELD THEORY
QUARKS
SIMULATION
SYMMETRY