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quant-ph2021
The general structure of the Decoherence-free subalgebra for uniformly continuous Quantum Markov semigroups
Emanuela Sasso, Veronica Umanità
By using the decomposition of the decoherence-free subalgebra N(T) in direct integrals of factors, we obtain a structure theorem for every uniformly continuous QMSs. Moreover we pr…
quant-ph2017
Relationships between the decoherence-free algebra and the set of fixed points
F. Fagnola, E. Sasso, V. Umanita'
We show that, for a Quantum Markov Semigroup (QMS) with a faithful normal invariant state, the atomicity of the decoherence-free subalgebra and environmental decoherence are equiva…