Strong-Coupling Polarons in Dilute Gas Bose-Einstein Condensates
Fernando CucchiettiT-4, Theory Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USAEddy TimmermansT-4, Theory Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
2006en
ABI
Аннотация
A neutral impurity atom immersed in a dilute Bose-Einstein condensate (BEC) can have a bound ground state in which the impurity is self-localized. In this polaronlike state, the impurity distorts the density of the surrounding BEC, thereby creating the self-trapping potential minimum. We describe the self-localization in a strong-coupling approach.
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