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math-ph2023
From Kraus Operators to the Stinespring Form of Quantum Maps: An Alternative Construction for Infinite Dimensions
Frederik vom Ende
We present an alternative (constructive) proof of the statement that for every completely positive, trace-preserving map there exists an auxiliary Hilbert space in…
math-ph2018★ 8 cited
Unitary Dilations of Discrete-Time Quantum-Dynamical Semigroups
Frederik vom Ende, Gunther Dirr
We show that the discrete-time evolution of an open quantum system generated by a single quantum channel can be embedded in the discrete-time evolution of an enlarged closed qu…