Photon dispersion relations in A₀-background

2018/09/21 by M. Bordag, Bordag, M., V. Skalozub +1
Physics and Astronomy · #High-Energy Particle Collisions Research #Cosmology and Gravitation Theories #Pulsars and Gravitational Waves Research

paper · pdf · doi:10.48550/arxiv.1809.08117

Abstract

We calculate the photon dispersion relations generated by the quark loop in a quark-gluon plasma with the color A₀ background condensate A₀^c = A₀^c3 + A₀^c8 = const. It is found that both transversal and longitudinal modes are exited. They have a gap at low momenta and are stable in high temperature approximation. The background fields act as imaginary chemical potentials and decrease the photon frequencies compared to the case of zero background. The comparison with QED plasma with chemical potential is discussed.

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