Enhancing entanglement generation of two atoms in a cavity with white noise using classical driving fields

Enhancing entanglement generation of two atoms in a cavity with white noise using classical driving fields
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使用经典驱动场通过白噪声增强空腔中两个原子的纠缠生成

DOI:
10.3788/col20110904.042701
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发表时间:
2011-04
影响因子:
3.5
通讯作者:
Chen, Aixi
Chen, Aixi
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Zhang, Jiansong;Chen, Aixi

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研究了存在白色噪声时,腔中两个二能级原子与经典驱动场的纠缠动力学。腔体最初在真空状态下制备。一般情况下,两个原子的纠缠度随着热场的强度以及二能级原子与热场的耦合强度的增大而减小。然而,我们发现在白色噪声存在的情况下,通过调节经典驱动场的频率和强度可以增强量子系统的纠缠。
We investigate the entanglement dynamics of a quantum system consisting of two two-level atoms in a cavity with classical driving fields in the presence of white noise. The cavity is initially prepared in the vacuum state. Generally, the entanglement of two atoms decreases with the intensity of the thermal fields and the coupling strength of the two-level atoms to the thermal fields. However, we find that the entanglement of the quantum system can be enhanced by adjusting the frequency and the strength of the classical driving fields in the presence of white noise.
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