Semiclassical Coulomb field

Details Semiclassical Coulomb field Semiclassical Coulomb field

2007-12-28

arxiv.org/abs/0801.0012v2

Phys.Rev.D77:125018,2008

Physics

Quantum Physics

Final version to appear in Physical Review D, 13 pages, 5 figures

Scientific paper

10.1103/PhysRevD.77.125018

The contribution of different modes of the Coulomb field to decoherence and to the dynamical breakdown of the time reversal invariance is calculated in the one-loop approximation for non-relativistic electron gas. The dominant contribution was found to come from the usual collective modes in the plasma, namely the zero-sound and the plasmon oscillations. The length scale of the quantum-classical transition is found to be close to the Thomas-Fermi screening length. It is argued that the extension of these modes to the whole Fock-space yield optimal pointer states.

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