2013/02/27 by S. Lorenzo, F. Plastina, M. Paternostro · 2 citations
Physics and Astronomy · #quant-ph
paper · pdf · doi:10.1103/physreva.88.020102
arxiv created 2013/02/27 · arxiv updated 2015/06/15
We introduce a new tool for the quantitative characterisation of the departure form Markovianity of a given dynamical process. Our tool can be applied to a generic N-level system and extended straightforwardly to Gaussian continuous-variable systems. It is linked to the change of the volume of physical states that are dynamically accessible to a system and provides qualitative expectations in agreement with some of the analogous tools proposed so far. We illustrate its prediticve power by tackling a few canonical examples.