Quantum Darwinism for mixed-state environment

ORAL

Abstract

We exam quantum darwinism when a system is in the presence of a mixed environment, and we find a general relation between the mutual information for the mixed-state environment and the change of the entropy of the fraction of the environment. We then look at a particular solvable model, and we numerically exam the time evolution of the ``mutual information" for large environment. Finally we discuss about the exact expressions for all entropies and the mutual information at special time.

Authors

  • Haitao Quan

  • Michael Zwolak

  • Wojciech Zurek