Property of Quantum Correlations with Correlated Noise |
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Authors: | HE Zhi ZOU Jian LI Jian SHAO Bin |
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Institution: | Department of Physics, School of Sciences, Beijing Institute of Technology, Beijing 100081, China |
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Abstract: | We analyze the classical and quantum correlation properties of thestandard and so-called quasiclassical depolarizing channel with correlated noise and non-Markovian dephasing channel, specifically we use the quantum discord, entanglement, and measurement-induced disturbance (MID) to measure the quantum correlations. For the depolarizing channel, we find that the memory effect has more influence on the MID and quantum discord than entanglement. For the dephasing channel, we show that the non-Markovian dephasing channel is more robust than Markovian dephasing channel against decoherence. We also find that at first MID and quantum discord take different values, and then after a specific time they will take almost the samevalue and both decay monotonically in the same way. |
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Keywords: | entanglement quantum discord measurement-induced disturbance (MID) non-Markovian process |
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