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The photon wave function

机译:光子波函数

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摘要

We review and sharpen the concept of a photon wave function based on the quantum theory of light. We argue that a point-like atom serves as the archetype for both the creation and detection of photons. Spontaneous emission from atoms provides a spatially localized source of photon states that serves as a natural wave packet basis for quantum states of light. Photodetection theory allows us to give operational meaning to the photon wave function which, for single photons, is analogous to the electric field in classical wave optics. Entanglement between photons, and the uniquely quantum phenomena that result from it, are exemplified by two-photon wave functions.
机译:我们回顾和完善了基于光量子理论的光子波函数的概念。我们认为,点状原子是创建和检测光子的原型。来自原子的自发发射提供了空间局部的光子状态源,该光子状态充当光量子状态的自然波包基础。光电检测理论使我们能够给光子波函数赋予可操作的意义,对于单光子,它类似于经典波光学中的电场。光子之间的纠缠以及由此产生的独特量子现象以双光子波函数为例。

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