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Dynamics of Cohering and Decohering Power under Markovian Channels
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作者 陈明明 罗宇 +1 位作者 邵连合 李永明 《Communications in Theoretical Physics》 SCIE CAS CSCD 2017年第11期571-579,共9页
In this paper, we investigate the cohering and decohering power of the one-qubit Markovian channels with respect to coherence measures based on the l1-norm, the Renyi a-relative entropy and the Tsallis a-relative entr... In this paper, we investigate the cohering and decohering power of the one-qubit Markovian channels with respect to coherence measures based on the l1-norm, the Renyi a-relative entropy and the Tsallis a-relative entropy of coherence, respectively. The amplitude damping channel, phase damping channel, depolarizing channel, and flip channels axe analytically calculated. It shows that the decohering power of the amplitude damping channel on the x, y, and z basis is equal to each other. The same phenomenon can be seen for the phase damping channel and the flip channels. The cohering power for the phase damping channel and the flip channels on the x, y basis also equals to that on the z basis. However, the cohering and decohering power of the depolaxizing channel is independent to the reference basises. And the cohering power of the amplitude damping channel on the x, y basis is different to that on the z basis. 展开更多
关键词 l1-norm R6nyi α-relative entropy Tsallis m-relative entropy single-qubit state Markovian chan-nels cohering and decohering power
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