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Journal of Mathematical Physics

Quantum statistics of multimode m-photon absorption process

Muhammad Suhail Zubairy

Published Nov 1, 1980• 6 citations
Publisher

Abstract

A density matrix method is used to obtain an exact solution for the reduced density matrix of the field in an arbitrary multimode m-photon absorption process. The results of some earlier specialized studies of photon statistics in multiphoton absorption process can be recovered from this solution.
DOI
10.1063/1.524371

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Abstract In order to continue and generalize the studies of the density matrix of a light field undergoing k‐photon absorption, in this paper we put the emphasis on the off‐diagonal elements. The solution obtained earlier for the diagonal elements describing the photon statistics can be found as a special case but will not be discussed again. The general solution calculated by recursion shows an asymptotic behaviour if the initial photon number is sufficiently high. Only the initial phase information survives. Illustrating the solution we start with coherent light and a generalized coherent state.
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