Heisenberg-limited quantum interferometry with multiphoton-subtracted twin beams
Heisenberg-limited quantum interferometry with multiphoton-subtracted twin beams
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DOI：
10.1103/physreva.103.013726
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发表时间：
2021-01
影响因子：
2.9
通讯作者：
M. Eaton;Rajveer Nehra;A. Win;O. Pfister
中科院分区：
文献类型：
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作者：
M. Eaton;Rajveer Nehra;A. Win;O. Pfister
我们提出了一种海森伯限制量子干涉仪，其输入是一个或多个光子已经被不可分割地减去的双光束。这种干涉仪可以产生海森堡限制的性能，同时给出直接的条纹阅读，这与Holland-Burnett干涉仪的双光束输入不同。我们提出了一个可行的实验实现使用光子数相关的源，如非简并参数下转换，并进行现实的性能分析中存在的损失和检测器效率低下。
We propose a Heisenberg-limited quantum interferometer whose input is twin optical beams from which one or more photons have been indistinguishably subtracted. Such an interferometer can yield Heisenberg-limited performance while at the same time giving a direct fringe reading, unlike for the twin-beam input of the Holland-Burnett interferometer. We propose a feasible experimental realization using a photon-number correlated source, such as nondegenerate parametric down-conversion, and perform realistic analyses of performance in the presence of loss and detector inefficiency.