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arXiv 1902.09247quant-ph
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基于弱值放大的光机参数估计

Estimation of an Optomechanical Parameter via Weak Value Amplification

Sergio Carrasco, Miguel Orszag

摘要:

在这篇文章中,我们提出了一个实验的建议,在噪声的存在下的光学机械参数的估计。该方法基于弱值放大技术,可以放大单光子对机械振子的辐射压效应。在我们的设置中,我们表明,弱值放大技术是最好的方法,依赖于一个强大的测量后选择的估计,因为第一种方法不需要一个很好的先验知识的参数,我们希望估计,而这两种策略达到相同水平的精度从费雪信息的角度来看。在存在强相关噪声的情况下,从Fisher信息的角度来看,弱值放大方法比不采用后选择并且受相同类型噪声影响的标准测量策略更可取。

英文摘要:

In this article we present an experimental proposal for the estimation of an optomechanical parameter in the presence of noise. The estimation is based on the technique of weak value amplification which can enlarge the radiation pressure effect of a single photon on a mechanical oscillator. In our setup we show that the weak value amplification technique is preferable for the estimation over a method that relies on a strong measurement with postselection, because the first method does not require a good prior knowledge of the parameter we wish to estimate, while both strategies reach the same level of precision from a Fisher information perspective. In the presence of strongly correlated noise the weak value amplification method is preferable, from a Fisher information perspective, than a standard measurement strategy that does not employ postselection and that is affected by the same type of noise.

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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