Semiclassical calculation of the diffusion constant for the Lambda system momentum.
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We present a one-dimensional, semiclassical calculation of the momentum diffusion constant for a stationary atom. We show that if the difference detuning between the driving fields is zero, the diffusion vanishes, and we interpret this behavior in terms of the atom-field eigenstates. We present explicit solutions to the equations of motion in the special case where one of the driving fields vanishes and compare them to the case of a two-level atom at a field node. Finally, we examine the correspondence between the semiclassical and quantum-mechanical analyses at zero difference detuning and we show a correspondence between the semiclassical and quantum-mechanical dark states when the driving fields are superpositions of plane waves with the same magnitude of wave vector. 1995 The American Physical Society.
author list (cited authors)
Chu, A., Katz, D. P., Prentiss, M., Shahriar, M. S., & Hemmer, P. R.
complete list of authors
Chu, A||Katz, DP||Prentiss, M||Shahriar, MS||Hemmer, PR