Strong-coupling polarons in dilute gas Bose-Einstein condensates |
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| Authors: | Cucchietti F M Timmermans E |
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| Institution: | T-4, Theory Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA. |
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| Abstract: | 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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