Master-equation approach to collisionally induced absorption and emission

G. Alber and J. Cooper
Phys. Rev. A 33, 3084 – Published 1 May 1986
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Abstract

We study the collisionally induced excitation and photon emission of a neutral radiator atom surrounded by a gas of neutral foreign perturbers within the binary-collision approximation. We derive an equation of motion for the reduced density matrix of the radiator and obtain the spectrum of the spontaneously emitted photons including components due to collisionally induced radiation and to Rayleigh scattering, which is valid in both impact and quasistatic regimes. In our formulation single and subsequent collisional contributions are taken into account, and various coherent and incoherent corrections are examined.

  • Received 12 November 1985

DOI:https://doi.org/10.1103/PhysRevA.33.3084

©1986 American Physical Society

Authors & Affiliations

G. Alber and J. Cooper

  • Joint Institute for Laboratory Astrophysics, University of Colorado and National Bureau of Standards, Boulder, Colorado 80309 and Department of Physics, University of Colorado, Boulder, Colorado 80309

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Vol. 33, Iss. 5 — May 1986

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