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Anisotropic Electrical Conductivity of Magnetized Hot Quark Matter by Ghosh, Sabyasachi; Bandyopadhyay, Aritra; Farias, Ricardo L. S.; Dey, Jayanta; Krein, Gastão is a scholarly article available to read on EtoBox.

What is Anisotropic Electrical Conductivity of Magnetized Hot Quark Matter about?

We studied the effect of a strong magnetic field ($B$) on the electrical conductivity of hot quark matter. The electrical conductivity is a key transport coefficient determining the time dependence and strength of magnetic fields generated in a relativistic heavy-ion collision. A~magnetic field induces Hall anisotropic conduction, phase-space Landau-level quantization and, if sufficiently strong, interferes with prominent QCD phenomena such as dynamical quark mass generation, likely affecting the quark matter electrical conductivity, which depends strongly on the quark masses. To address these issues, we used a quasi-particle description of quark matter in which the electric charge carriers are constituent quarks with temperature- and magnetic-field-dependent masses predicted by a Nambu--Jona-Lasinio model. The model accurately describes recent lattice QCD results showing magnetic catalysis at low temperatures and inverse magnetic catalysis at temperatures close to the pseudo-critical temperature ($T_{\rm pc}$) of the QCD phase transition. We found that the magnetic field increases the conductivity component parallel to it and decreases the transverse component, in qualitative agre

Author

Ghosh, Sabyasachi; Bandyopadhyay, Aritra; Farias, Ricardo L. S.; Dey, Jayanta; Krein, Gastão

Published

2019

Language

EN