Hannover 2003 – wissenschaftliches Programm
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Q: Quantenoptik
Q 51: Quantengase 5
Q 51.5: Vortrag
Freitag, 28. März 2003, 15:00–15:15, F303
Interference scheme to measure light-induced nonlinearities in Bose-Einstein condensates — •Konstantin Krutitsky1, Peter Marzlin2, and Jürgen Audretsch2 — 1Fachbereich Physik der Universität Essen, Postfach 10 37 64, 45117 Essen — 2Fachbereich Physik der Universität Konstanz, Fach M 674, D-78457 Konstanz
Stimulated exchange of photons between atoms in a Bose-Einstein condensate leads to light-induced nonlinear terms in the Gross-Pitaevskii equation and these terms are comparable with collisional nonlinearities. However, the observation of light-induced nonlinearities in a Bose-Einstein condensate is difficult due to the decoherence caused by spontaneous emission, which implies rather strong restrictions on the interaction times. We propose an interference scheme to measure light-induced nonlinearities which is based on a combination of the phase imprinting method and the technique similar to the stimulated Raman adiabatic passage.