Wave-Kinetic Approach to Collective Atomic Emission
Keyword(s):
We study the collective scattering of radiation by a large ensemble of Na≫1 atoms, in the presence of a pump field. We use the wave-kinetic approach where the center-of-mass position of the moving atoms is described by a microscopic discrete distribution, or alternatively, by a Wigner distribution. This approach can include thermal effects and quantum recoil in a natural way, and even consider atomic ensembles out of equilibrium. We assume two-level atoms with atomic transition frequency ωa very different from the frequency ω0 of the pump field. We consider both the quasi-classical and quantum descriptions of the center-of-mass motion. In both cases, we establish the unstable regimes where coherent emission of radiation can take place.
Keyword(s):
2009 ◽
Vol 18
(05n06)
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pp. 1166-1175
2013 ◽
Vol 437
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pp. 663-668
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2007 ◽
Vol 30
(3)
◽
pp. 471-479
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2020 ◽
Vol 21
(9)
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pp. 1653-1661
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2003 ◽
Vol 40
(2)
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pp. 207-210