Kraus representation for density operator of arbitrary open qubit system

Abstract

We show that the time evolution of density operator of open qubit system can always be described in terms of the Kraus representation. A general scheme on how to construct the Kraus operators for an open qubit system is proposed, which can be generalized to open higher dimensional quantum systems.

5 pages, no figures. Some words are rephrased

References in corpus (4)

• Dynamics of open quantum systems initially entangled with environment: Beyond the Kraus representation
• Kraus representation in the presence of initial correlations
• Restriction on relaxation times derived from the Lindblad-type master equations for 2-level systems
• Purification and correlated measurements of bipartite mixed states

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