Exactly soluble models of decoherence

Details Exactly soluble models of decoherence Exactly soluble models of decoherence

1998-11-04

arxiv.org/abs/quant-ph/9811010v1

Physics

Quantum Physics

12 pages, Latex

Scientific paper

Superselection rules induced by the interaction with the environment are a basis to understand the emergence of classical observables within quantum theory. The aim of this article is to investigate the decoherence effects, which lead to superselection sectors, with the help of exactly soluble Hamiltonian models. Starting from the examples of Araki and of Zurek more general models with scattering are presented for which the projection operators onto the induced superselection sectors do no longer commute with the Hamiltonian. The example of an environment given by a free quantum field indicates that infrared divergence plays an essential role for the emergence of induced superselection sectors. For all models the induced superselection sectors are uniquely determined by the Hamiltonian, whereas the time scale of the decoherence depends crucially on the initial state of the total system.

Affiliated with

Also associated with

No associations

Rating

Exactly soluble models of decoherence does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Exactly soluble models of decoherence, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exactly soluble models of decoherence will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-610888