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Quantum electrodynamics and light rays

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  • Sudarshan, E.C.G.

Abstract

Light is a quantum electrodynamic entity and hence bundles of rays must be describable in this framework. We demonstrate the duality in the description of elementary optical phenomena in terms of two-point correlation functions and in terms of collections of light rays. The generalizations necessary to deal with two-slit interference and diffraction by a rectangular slit are worked out and the usefulness of the notion of rays of darkness is illustrated.

Suggested Citation

  • Sudarshan, E.C.G., 1979. "Quantum electrodynamics and light rays," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 96(1), pages 315-320.
    • Handle: RePEc:eee:phsmap:v:96:y:1979:i:1:p:315-320
    DOI: 10.1016/0378-4371(79)90221-8
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