The structure of uniformly continuous quantum Markov semigroups with atomic decoherence-free subalgebra is established providing a natural decomposition of a Markovian open quantum system into its noiseless (decoherence-free) and irreducible (ergodic) components. This leads to a new characterization of the structure of invariant states and a new method for finding decoherence-free subsystems and subspaces. Examples are presented to illustrate these results.

Structure of uniformly continuous quantum Markov semigroups

FAGNOLA, FRANCO;
2016-01-01

Abstract

The structure of uniformly continuous quantum Markov semigroups with atomic decoherence-free subalgebra is established providing a natural decomposition of a Markovian open quantum system into its noiseless (decoherence-free) and irreducible (ergodic) components. This leads to a new characterization of the structure of invariant states and a new method for finding decoherence-free subsystems and subspaces. Examples are presented to illustrate these results.
2016
atomic von Neumann algebra; decoherence; Quantum Markov semigroups; Statistical and Nonlinear Physics; Mathematical Physics
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/982068
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