About non-positive evolutions in open system dynamics

Details About non-positive evolutions in open system dynamics About non-positive evolutions in open system dynamics

2003-03-05

arxiv.org/abs/quant-ph/0303027v1

Physics

Quantum Physics

13 pages, plain-TeX

Scientific paper

10.1103/PhysRevA.67.042110

The long-time evolution of a system in interaction with an external environment is usually described by a family of linear maps g_t, generated by master equations of Block-Redfield type. These maps are in general non-positive; a widely adopted cure for this physical inconsistency is to restrict the domain of definition of the dynamical maps to those states for which g_t remains positive. We show that this prescription has to be modified when two systems are immersed in the same environment and evolve with the factorized dynamics g_t x g_t starting from an entangled initial state.

Affiliated with

Also associated with

No associations

Rating

About non-positive evolutions in open system dynamics 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 About non-positive evolutions in open system dynamics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and About non-positive evolutions in open system dynamics will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-490789