Optomechanical Sensing of Spontaneous Wave-Function Collapse
Optomechanical Sensing of Spontaneous Wave-Function Collapse
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DOI：
10.1103/physrevlett.113.020405
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发表时间：
2014-07-10
影响因子：
8.6
通讯作者：
Hammerer, Klemens
中科院分区：
文献类型：
--
作者：
Nimmrichter, Stefan;Hornberger, Klaus;Hammerer, Klemens
纳米机械振荡器的量子实验被视为薛定谔方程的假设修改的测试平台，其预测叠加原理的崩溃并在宏观尺度上诱导经典行为。一般认为，对这些非常规效应的敏感性随着力学量子系统的质量而增长。在这里，我们表明，相反的情况下，在一般的噪声源，如热和测量噪声的存在下，光学机械系统。我们确定区分这些退相干过程中可能的湍流引起的退相干在连续光机械力测量的条件。
Quantum experiments with nanomechanical oscillators are regarded as a test bed for hypothetical modifications of the Schrodinger equation, which predict a breakdown of the superposition principle and induce classical behavior at the macroscale. It is generally believed that the sensitivity to these unconventional effects grows with the mass of the mechanical quantum system. Here we show that the opposite is the case for optomechanical systems in the presence of generic noise sources, such as thermal and measurement noise. We determine conditions for distinguishing these decoherence processes from possible collapse-induced decoherence in continuous optomechanical force measurements.