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arXiv 2109.14166quant-phphysics.optics
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强angular momentum光机耦合宏观量子控制

Strong angular momentum optomechanical coupling for macroscopic quantum control

Yuan Liu, Yaoming Chu, Shaoliang Zhang, Jianming Cai

摘要:

光机系统为探索宏观量子态及相关的量子力学基本问题提供了独特的机会。在这里,我们提出了一个量子光学力学系统,涉及交换相互作用的自旋角动量的光和扭转振子。我们证明了该系统允许在单光子水平上对扭转振子的扭转量子态进行相干控制,这有利于扭转振子的有效冷却和压缩.此外,在薛定谔类猫态中还可以制备具有宏观尺度的扭转振子。我们的工作为在微米甚至厘米尺度上验证量子力学在宏观系统中的有效性提供了一个平台。

英文摘要:

Optomechanical systems offer unique opportunities to explore macroscopic quantum state and related fundamental problems in quantum mechanics. Here, we propose a quantum optomechanical system involving exchange interaction between spin angular momentum of light and a torsional oscillator. We demonstrate that this system allows coherent control of the torsional quantum state of a torsional oscillator on the single photon level, which facilitates efficient cooling and squeezing of the torsional oscillator. Furthermore, the torsional oscillator with a macroscopic length scale can be prepared in Schrödinger cat-like state. Our work provides a platform to verify the validity of quantum mechanics in macroscopic systems on the micrometer and even centimeter scale.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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