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quant-ph2023
Compactness criterion for families of quantum operations in the strong convergence topology and its applications
M. E. Shirokov
A revised version of the compactness criterion for families of quantum operations in the strong convergence topology (obtained previously) is presented, along with a more detailed…
quant-ph2023
Lower semicontinuity of the relative entropy disturbance and its corollaries
M. E. Shirokov
It is proved that the decrease of the quantum relative entropy under action of a quantum operation is a lower semicontinuous function of a pair of its arguments. This property impl…