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math.OA2020
Quantum information theory and Fourier multipliers on quantum groups
Cédric Arhancet
In this paper, we compute the exact values of the minimum output entropy and the completely bounded minimal entropy of very large classes of quantum channels acting on matrix algeb…
math.OA2020
A characterization of completely bounded normal Jordan -homomorphisms on von Neumann algebras
Cédric Arhancet
We characterize completely bounded normal Jordan -homomorphisms acting on von Neumann algebras. We also characterize completely positive isometries acting on noncommutative $\ma…