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|Title:||Unification of witnessing initial system-environment correlations and witnessing non-Markovianity|
|Citation:||Rodríguez-Rosario, C.A., Modi, K., Mazzola, L., Aspuru-Guzik, A. (2012-07). Unification of witnessing initial system-environment correlations and witnessing non-Markovianity. EPL 99 (2) : -. ScholarBank@NUS Repository. https://doi.org/10.1209/0295-5075/99/20010|
|Abstract:||We show the connection between a witness that detects dynamical maps with initial system-environment correlations and a witness that detects non-Markovian open quantum systems. Our analysis is based on studying the role that state preparation plays in witnessing violations of contractivity of open-quantum-system dynamics. Contractivity is a property of some quantum processes where the trace distance of density matrices decrease with time. From this, we show how a witness of initial correlations is an upper bound to a witness of non-Markovianity. We discuss how this relationship shows further connections between initial system-environment correlations and non-Markovianity, at an instance of time, in open quantum systems. Copyright © EPLA, 2012.|
|Appears in Collections:||Staff Publications|
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