Single-Phonon Addition and Subtraction to a Mechanical Thermal State.
Single-Phonon Addition and Subtraction to a Mechanical Thermal State.
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机械热状态的单声子加法和减法。
DOI：
10.1103/physrevlett.126.033601
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发表时间：
2021
影响因子：
8.6
通讯作者：
Enzian G
中科院分区：
文献类型：
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作者：
Enzian G
在玻色子系统的热态上增加或减少一个激发量子，会产生反直觉的效果，使其平均占有率大约增加一倍。我们执行的第一个实验演示这种效果的光学外部通过实施单声子加法和减法的热状态的机械振荡器通过布里渊光学力学在光学回音壁微谐振器。使用的检测方案，结合单光子计数和光外差检测，我们观察到这种机械热波动的两倍，以高精度。这种联合点击-达因检测方案的能力为光机械量子科学和应用增加了一个重要的新维度。
Adding or subtracting a single quantum of excitation to a thermal state of a bosonic system has the counter-intuitive effect of approximately doubling its mean occupation. We perform the first experimental demonstration of this effect outside optics by implementing single-phonon addition and subtraction to a thermal state of a mechanical oscillator via Brillouin optomechanics in an optical whispering-gallery microresonator. Using a detection scheme that combines single-photon counting and optical heterodyne detection, we observe this doubling of the mechanical thermal fluctuations to a high precision. The capabilities of this joint click-dyne detection scheme adds a significant new dimension for optomechanical quantum science and applications.