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arXiv 2201.08965quant-ph
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在磁振机械界面中耗散式生成大量光子-声子不对称导引

Dissipative generation of significant amount of photon-phonon asymmetric steering in magnomechanical interfaces

Tian-Ang Zheng, Ye Zheng, Lei Wang, Chang-Geng Liao

备注：
15 pages, 3 subfigures
发表信息：
EPJ Quantum Technol. 10, 19 (2023)
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AI总结：

本研究提出在腔磁振机械系统中，以蓝失谐场驱动磁振子模式作为人工储库冷却腔模和机械模的玻戈留波夫模式，在等耗散条件下生成光子-声子间的强不对称量子导引，为理解不对称导引物理及腔自旋电子学的量子密钥分发应用提供新方向。

摘要：

我们提出了一种在由微波腔和钇铁石榴石球构成的腔磁振机械系统中，生成光子与声子之间大量纠缠及不对称导引的有效方法。通过蓝失谐微波场驱动钇铁石榴石球的磁振子模式，该磁振子模式可充当人工构建的 reservoirs（储库），通过类分束器相互作用冷却微波腔模式和机械模式的玻戈留波夫模式。通过这种方式，微波腔模式和机械模式在稳态极限下被驱动至双模压缩态。特别值得注意的是，即使在耗散相等的情况下，也能获得光子与声子模式之间强的双向及单向不对称量子导引。这与传统的不对称量子导引方案截然不同，传统方案需要对两个子系统施加额外的不平衡损耗或噪声。我们的发现可能对拓展我们对不对称导引基本物理机制的理解具有重要意义，并将腔自旋电子学的潜在应用延伸至设备无关量子密钥分发领域。

英文摘要：

We propose an effective approach for generating significant amount of entanglement and asymmetric steering between photon and phonon in a cavity magnomechanical system which consists of a microwave cavity and a yttrium iron garnet sphere. By driving the magnon mode of the yttrium iron garnet sphere with blue-detuned microwave field, the magnon mode can be acted as an engineered resevoir cools the Bogoliubov modes of microwave cavity mode and mechanical mode via beam-splitter-like interaction. In this way, the microwave cavity mode and mechanical mode are driven to two-mode squeezed states in the stationary limit. In particular, strong two-way and one-way asymmetric quantum steering between the photon and phonon modes can be obtained with even equal dissipation. It is very different from the conventional proposal of asymmetric quantum steering, where additional unbalanced losses or noises on the two subsystems has been imposed. Our finding may be significant to expand our understanding of the essential physics of asymmetric steering and extend the potential application of the cavity spintronics to device-independent quantum key distribution.

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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