Optomechanical entanglement at room temperature: A simulation study with realistic conditions
Optomechanical entanglement at room temperature: A simulation study with realistic conditions
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DOI：
10.1103/physreva.102.063518
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发表时间：
2020-07
影响因子：
2.9
通讯作者：
Kahlil Y. Dixon;L. Cohen;N. Bhusal;C. Wipf;J. Dowling;T. Corbitt
中科院分区：
文献类型：
--
作者：
Kahlil Y. Dixon;L. Cohen;N. Bhusal;C. Wipf;J. Dowling;T. Corbitt
量子纠缠是量子密钥分发、量子隐形传态和量子传感等许多应用的关键。然而，在宏观系统中可靠地产生量子纠缠已被证明是一个挑战。在这里，我们对有质动力纠缠生成进行了详细分析，它利用光机械相互作用来创建量子相关性。我们通过数值计算纠缠度量——对数负性——来定量评估纠缠。计算中包含了来自现有实验测量的实验限制，包括热噪声和光损耗，这很难通过分析解决。这项工作将对有质动力纠缠装置的发展发挥重要作用。
Quantum entanglement is the key to many applications like quantum key distribution, quantum teleportation, and quantum sensing. However, reliably generating quantum entanglement in macroscopic systems has proved to be a challenge. Here, we present a detailed analysis of ponderomotive entanglement generation which utilizes optomechanical interactions to create quantum correlations. We numerically calculate an entanglement measure -- the logarithmic negativity -- for the quantitative assessment of the entanglement. Experimental limitations, including thermal noise and optical loss, from measurements of an existing experiment were included in the calculation, which is intractable to solve analytically. This work will play an important role in the development of ponderomotive entanglement devices.