Non-Equilibrium Quantum Electrodynamics

Details Non-Equilibrium Quantum Electrodynamics Non-Equilibrium Quantum Electrodynamics

1997-09-30

arxiv.org/abs/hep-th/9709223v2

Phys.Rev. D58 (1998) 105006

Physics

High Energy Physics

High Energy Physics - Theory

28 pages, 2 figures. Substantially revised, one important mistake corrected; discussion on decoherence upgraded, section 4 ess

Scientific paper

10.1103/PhysRevD.58.105006

We employ the influence functional technique to trace out the photonic contribution from full quantum electrodynamics. The reduced density matrix propagator for the spinor field is then constructed. We discuss the role of time-dependent renormalization in the propagator and focus on the possibility of obtaining dynamically induced superselection rules. Finally, we derive the master equation for the case of the field being in an one-particle state in a non-relativistic regime and discuss whether EM vacuumm fluctuations are sufficient to produce decoherence in the position basis.

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