The photon wave function

Details The photon wave function The photon wave function

Aug 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005spie.5866..287m&link_type=abstract

The Nature of Light: What Is a Photon?. Edited by Roychoudhuri, Chandrasekhar; Creath, Katherine. Proceedings of the SPIE, Volu

Physics

Optics

2

Scientific paper

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.

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