论文标题

使用强(多光子)连贯状态从实验中获得单光子弱值

Obtaining a Single-Photon Weak Value from Experiments using a Strong (Many-Photon) Coherent State

论文作者

Wiseman, Howard M., Steinberg, Aephraim M., Hallaji, Matin

论文摘要

一种常见的弱价值实验可以在一个状态下准备一个粒子,弱测量另一种状态的职业数量,并在选择粒子以在第三个状态下找到粒子(a“ click”)。大多数弱值实验是使用光子进行的,但是单个光子的预言制备困难且速率缓慢。在这里,我们表明上述弱值可以使用强(多光子)相干状态来测量,同时仍然只需要“单击”检测器,例如雪崩光电二极管。一个人只是从单击弱值中减去无单击的弱值,然后通过单击概率的简单函数来缩放答案。

A common type of weak-value experiment prepares a single particle in one state, weakly measures the occupation number of another state, and post-selects on finding the particle in a third state (a 'click'). Most weak-value experiments have been done with photons, but the heralded preparation of a single photon is difficult and slow of rate. Here we show that the weak value mentioned above can be measured using strong (many-photon) coherent states, while still needing only a 'click' detector such as an avalanche photodiode. One simply subtracts the no-click weak value from the click weak-value, and scales the answer by a simple function of the click probability.

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