首页|Entropy variances of pure coherent states in the diffusion channel
Entropy variances of pure coherent states in the diffusion channel
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Using the operator correspondence of the real and fictious modes in the thermo entangled state representation,we solve the quantum master equation describing the diffusion channel and obtain the Kraus operator-sum representation of its analytical solution.we find that the pure coherent states evolve into the new mixed thermal superposed states in the diffusion channel.Also,we investigate the statistical properties of the initial coherent states and their entropy evolutions in the diffusion channel,and find that the entropy evolutions are only related to the decay time and without the amplitudes of the initial coherent states.
entangled state representationdiffusion channelcoherent stateentropy evolution
吴卫锋、方勇、付鹏
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School of Mechanical and Electrical Engineering,Chizhou University,Chizhou 247000,China
Anhui Research Center of Semiconductor Industry Generic Technology,Chizhou 247000,China
Collaborative Innovation Project of University,Anhui Province
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