Optically induced polarons in bose-einstein condensates: monitoring composite quasiparticle decay.
Nonresonant light scattering off atomic Bose-Einstein condensates is predicted to give rise to hitherto unexplored composite quasiparticles: unstable polarons, i.e., local "impurities" dressed by virtual phonons. Optical monitoring of their spontaneous decay can display either Zeno or anti-Zeno deviations from the golden rule, and thereby probe the temporal correlations of elementary excitations in the condensates.
Mazets
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Department of Chemical Physics, Weizmann Institute of Science, Rehovot, Israel.
Kurizki
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G
Katz
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Davidson
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