Phys. Rev. A 72, 012102 (2005) [9 pages]Decoherence time in self-induced decoherenceReceived 18 February 2005; published 1 July 2005 A general method for obtaining the decoherence time in self-induced decoherence is presented. In particular, it is shown that such a time can be computed from the poles of the resolvent or of the initial conditions in the complex extension of the Hamiltonian’s spectrum. Several decoherence times are estimated: 10−13–10−15 s for microscopic systems, and 10−37–10−39 s for macroscopic bodies. For the particular case of a thermal bath, the order of magnitude of our results agrees with that obtained by the einselection (environment-induced decoherence) approach. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.72.012102
DOI:
10.1103/PhysRevA.72.012102
PACS:
03.65.Yz
|
|
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.