Effect of non-Markovianity on synchronization |
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| Authors: | Kun-Jie Zhou(&#x &#x &#x ) Jian Zou( &#x ) Bao-Ming Xu( ½ ) Lei Li( Ê ) Bin Shao( ü ) |
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| Affiliation: | 1.School of Physics, Beijing Institute of Technology, Beijing 100081, China;2.Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, China;3.School of Physical Science and Technology, Inner Mongolia University, Hohhot 010021, China |
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| Abstract: | We investigate the transient spontaneous quantum synchronization between two qubits interacting with a common non-Markovian environment based on a collision model. We are mainly interested in the effect of non-Markovianity on the synchronization between two qubits. We find that the non-Markovianity always delay the anti-synchronization and decrease the parameter region where the qubits get anti-synchronized. Meanwhile, we define V to characterize the visibility of synchronization and show that there is an apparent link among V, entanglement and quantum mutual information whether in the Markovian or non-Markovian regimes when the environment is in the vacuum state. Moreover, with the increase of temperature, the parameter region of the emergence of anti-synchronization and the time to get anti-synchronized in the non-Markovian regime gradually approaches that in the Markovian regime. The high temperature decreases the parameter region of the emergence of anti-synchronization in both Markovian and non-Markovian regimes, and breaks the connection among V, entanglement and quantum mutual information. |
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| Keywords: | quantum synchronization non-Markovianity entanglement quantum mutual information |
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