It has been recently shown that collisional models can be used to derive a general form for the master equations which describe the reduced time evolution of a composite multipartite quantum system, whose components "propagate" in an environmental medium which induces correlations among them via a cascade mechanism. Here we analyze the fundamental assumptions of this approach showing how some of them can be lifted when passing into a proper interaction picture representation.

Master equation for cascade quantum channels: a collisional approach

GIOVANNETTI, VITTORIO;
2012

Abstract

It has been recently shown that collisional models can be used to derive a general form for the master equations which describe the reduced time evolution of a composite multipartite quantum system, whose components "propagate" in an environmental medium which induces correlations among them via a cascade mechanism. Here we analyze the fundamental assumptions of this approach showing how some of them can be lifted when passing into a proper interaction picture representation.
Quantum Information; Open quantum systems dynamics; Quantum channels
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11384/4928
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