0311025v1

related topics
{level, atom, field}
{wave, scattering, interference}
{light, field, probe}
{time, wave, function}
{equation, function, exp}
{spin, pulse, spins}
{cos, sin, state}
{states, state, optimal}
{information, entropy, channel}

Two-color interference stabilization of atoms

M. V. Fedorov, N. P. Poluektov

abstract: The effect of interference stabilization is shown to exist in a system of two atomic levels coupled by a strong two-color laser field, the two frequencies of which are close to a two-photon Raman-type resonance between the chosen levels, with open channels of one-photon ionization from both of them. We suggest an experiment, in which a rather significant (up to 90%) suppression of ionization can take place and which demonstrates explicitly the interference origin of stabilization. Specific calculations are made for H and He atoms and optimal parameters of a two-color field are found. The physics of the effect and its relation with such well-known phenomena as LICS and population trapping in a three-level system are discussed.

oai_identifier:
oai:arXiv.org:quant-ph/0311025
categories:
quant-ph
comments:
the paper includes 1 TeX file and 16 pictures
doi:
10.1103/PhysRevA.69.033404
arxiv_id:
quant-ph/0311025
created:
2003-11-06

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