Dynamics and Entanglement for Open Quantum Systems

Xin H. H. Zhang

Sandeep K. Goyal

Diplomarbeit von Marc Busse

Andre R. R. Carvalho, Marc Busse, Olivier Brodier +2 more

We show that, for experimentally relevant systems, there is an optimal measurement strategy to monitor the time evolution of entanglement under open system dynamics. This suggests an efficient, dynamical characterization of the entanglement of composite, open quantum systems.

Hyunchul Nha, H. J. Carmichael

The degree of entanglement in an open quantum system varies according to how information in the environment is read. A measure of this contextual entanglement is introduced based on quantum trajectory unravelings of the open system dynamics. It is used to characterize the entanglement in a driven quantum system of dimension 2 x infinity where the entanglement is induced by the environmental interaction. A detailed mechanism for the environment-induced entanglement is given.

Dmitry Mozyrsky