paper

States of light via reducible quantization

arXiv:quant-ph/0211009 · doi:10.1016/S0375-9601(03)00850-8

Abstract

Multi-photon and coherent states of light are formulated in terms of a reducible representation of canonical commutation relations. Standard properties of such states are recovered as certain limiting cases. The new formalism leads to field operators and not operator-valued distributions. The example of radiation fields produced by a classical current shows an automatic regularization of the infrared divergence.

version accepted in Phys. Lett. A

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