Evolution of an optically pumped ensemble of cold ground-state atoms in weak light fields |
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Authors: | A V Bezverbnyi |
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Institution: | (1) Admiral Nevelskii Maritime State University, Vladivostok, 690059, Russia;(2) Tomsk State University, Tomsk, 634050, Russia |
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Abstract: | The evolution of multipole moments is analyzed for optically pumped cold ground-state atoms in the limit of low saturation of a closed j0 → j1 dipole transition. The longest multipole-moment relaxation times are analyzed as functions of ellipticity and frequency detuning from resonance for transitions with j0 ? 5. The qualitative difference between the evolution toward steady-state Zeeman sublevel populations and dynamics of transient spontaneous emission is demonstrated for transitions of the following types: j → j?1, j → j with integer j, j → j with half-integer j, and j → j + 1. |
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