Unruh effect for fermions from the Zubarev density operator

2019/04/30 by George Y. Prokhorov, G. Yu. Prokhorov, Oleg V. Teryaev +3 · 4 citations
Physics and Astronomy · #Quantum Electrodynamics and Casimir Effect #Cold Atom Physics and Bose-Einstein Condensates #Quantum Mechanics and Non-Hermitian Physics

paper · pdf · doi:10.1103/physrevd.99.071901

Abstract

Using the Zubarev quantum-statistical density operator, we calculated the corrections to the energy-momentum tensor of a massless fermion gas associated with acceleration. It is shown that when fourth-order corrections are taken into account, the energy-momentum tensor in the laboratory frame is equal to zero at a proper temperature measured by a comoving observer equal to the Unruh temperature. Consequently, the Minkowski vacuum is visible to the accelerated observer as a medium filled with a heat bath of particles with the Unruh temperature, which is the essence of the Unruh effect.

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• Thermodynamics of accelerated fermion gases and their instability at the Unruh temperature
• Static heavy quark-antiquark potential within string theory in arbitrary stationary backgrounds
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