Phys. Rev. D 77, 125018 (2008) [11 pages]Semiclassical Coulomb fieldReceived 28 December 2007; revised 8 April 2008; published 17 June 2008 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 nonrelativistic 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 yields optimal pointer states. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.77.125018
DOI:
10.1103/PhysRevD.77.125018
PACS:
03.65.Ta, 71.10.Ca
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.