Isotropic quantum spin channels and additivity questions
作者： Robert Alicki
DOI:
关键词: Quantum mechanics 、 Maximum entropy probability distribution 、 Joint quantum entropy 、 Entropy (information theory) 、 Mathematics 、 Quantum discord 、 Quantum relative entropy 、 Amplitude damping channel 、 Configuration entropy 、 Generalized relative entropy
摘要: The minimum entropy output is computed for rotationally invariant quantum channels acting on spin-1/2 and spin-1 systems. For the case of two parallel such initial entangled (singlet) state higher then doubled minimal single channel. This gives a certain moral support to additivity hypothesis. Another related simple function channel (minimum gain) shown be additive in general.
harvard.edu
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