首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Quantum discord of the two-atom system in non-Markovian environments
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Quantum discord of the two-atom system in non-Markovian environments

机译:非马尔可夫环境中双原子系统的量子不和谐

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The quantum discord of the two-atom system, which is in two independent Lorentzian reservoirs and in two independent Ohmic reservoirs with the Lorentz-Drude cutoff function, respectively, and the reservoirs are at zero temperature, is studied by applying the time-convolutionless master-equation method. We find that the quantum discord of the two-atom system is dependent on the characteristics of non-Markovian environments. The results show that the quantum discord can be effectively protected not only in Lorentzian reservoirs, but also in ohmic reservoirs with the Lorentz-Drude cutoff function. Finally, the physical interpretations for these results are given via the correlation function.
机译:应用无时间卷积法,研究了两个原子系统的量子不和,分别位于两个独立的洛伦兹油藏和两个具有洛伦兹-德鲁德截止函数的独立的欧姆油藏中,且油藏处于零温度。方程法。我们发现,两个原子系统的量子不和谐取决于非马尔可夫环境的特征。结果表明,不仅在洛伦兹油藏中,而且在具有洛伦兹-德鲁德截止功能的欧姆油藏中,量子失调都可以得到有效保护。最后,通过相关函数给出这些结果的物理解释。

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