Heinz-Peter Breuer (University of Freiburg, Germany) is visiting the group from 29 to 31 May 2018.
On Tue, 29 May at 12.30 in Aula Polvani, he will deliver a seminar about:
Mixing-induced quantum non-Markovianity, system-environment correlations and information flow
Mixing dynamical maps describing open quantum systems can lead from Markovian to non-Markovian processes. Being surprising and counter-intuitive, this result has been used as argument against characterization of non-Markovianity in terms of information exchange. Here, we demonstrate that, quite the contrary, mixing can be understood in a natural way which is fully consistent with existing theories of memory effects. In particular, we show how mixing-induced non-Markovianity can be interpreted in terms of the distinguishability of quantum states, systeme-environment correlations and the information flow between system and environment.