Optomechanical Quantum Entanglement Mediated by Acoustic Phonon Fields
Optomechanical Quantum Entanglement Mediated by Acoustic Phonon Fields
复制标题
声声场介导的光机械量子纠缠
DOI：
10.1103/physrevlett.129.203604
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发表时间：
2022
影响因子：
8.6
通讯作者：
Blencowe, M. P.
中科院分区：
文献类型：
--
作者：
Xu, Qidong;Blencowe, M. P.
我们提出了两个空间分离的局部电感-电容振荡器的量子时间演化的精确解，这些振荡器光力学地耦合到作为量子热声场环境的长弹性条上。我们表明，光力学耦合到声环境引起的因果纠缠动力学的两个振子之间没有共振光子交换，并且显著的纠缠发展，无论环境温度。这一过程表明，超导量子比特之间可以通过连接的声子汇流排产生分布式纠缠，而不需要共振声子释放和捕获。
We present exact solutions for the quantum time evolution of two spatially separated, local inductor-capacitor () oscillators that are coupled optomechanically to a long elastic strip that functions as a quantum thermal acoustic field environment. We show that the optomechanical coupling to the acoustic environment gives rise to causal entanglement dynamics between the twooscillators in the absence of resonant photon exchange between them, and that significant entanglement develops regardless of the environment temperature. Such a process establishes that distributed entanglement may be generated between superconducting qubits via a connected phonon bus bar, without the need for resonant phonon release and capture.