Decoherence free subspaces of a quantum Markov semigroup

Journal Article · Sat Nov 15 00:00:00 EST 2014 · Journal of Mathematical Physics

DOI:https://doi.org/10.1063/1.4901009· OSTI ID:22403050

Agredo, Julián ^[1]; Fagnola, Franco ^[2]; Rebolledo, Rolando ^[3]

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1. Centro de Análisis Estocástico, Facultad de Ingeniería, Universidad Católica de Chile, Santiago, Chile and Departamento de Matemáticas, Universidad Nacional de Colombia, Manizales (Colombia)
2. Dipartimento di Matematica, Politecnico di Milano, Milano (Italy)
3. Centro de Análisis Estocástico, Facultad de Ingeniería, Facultad de Matemáticas, Universidad Católica de Chile, Santiago (Chile)

We give a full characterisation of decoherence free subspaces of a given quantum Markov semigroup with generator in a generalised Lindbald form which is valid also for infinite-dimensional systems. Our results, extending those available in the literature concerning finite-dimensional systems, are illustrated by some examples.

• OSTI ID: 22403050
• Journal Information: Journal of Mathematical Physics, Vol. 55, Issue 11; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-2488
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALGEBRA
MARKOV PROCESS
QUANTUM DECOHERENCE
QUANTUM GROUPS