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Direct photons emission rate and electric conductivity in twice anisotropic QGP holographic model with first-order phase transition

2021/04/30 by I. Ya. Aref’eva, Irina Ya. Aref'eva, Alexey Ermakov +1
Physics and Astronomy · #Anisotropy #Black Holes and Theoretical Physics #Condensed matter physics #Conductivity #Cosmology and Gravitation Theories #Electric field #Electrical resistivity and conductivity #High-Energy Particle Collisions Research #Holography #Phase (matter) #Phase transition #Photon #Physics #Quantum mechanics #hep-ph #hep-th

paper · pdf · doi:10.1140/epjc/s10052-022-10025-5

published as Eur. Phys. J. C 82, no.1, 85 (2022) · 32 pages, 11 figures, 2 tables, v3: typos corrected, refs added

openalex publication_date 2022/01/01 · openalex created_date 2022/02/08 · arxiv created 2022/03/23 · arxiv updated 2022/03/24 · openalex updated_date 2026/08/05

Abstract

The electric conductivity and direct photons emission rate are considered in the holographic theory with two types of anisotropy. The electric conductivity is derived in two different ways, and their equivalence for the twice anisotropic theory is shown. Numerical calculations of the electric conductivity were done for Einstein-dilaton-three-Maxwell holographic model [29]. The dependence of the conductivity on the temperature, the chemical potential, the external magnetic field, and the spatial anisotropy of the heavy-ions collision (HIC) is studied. The electric conductivity jumps near the first-order phase transition are observed. This effect is similar to the jumps of holographic entanglement that were studied previously.

Citations