- Abstract:
-
We study the interaction-induced localization - the so-called self-trapping - of a neutral impurity atom immersed in a homogeneous Bose-Einstein condensate (BEC). Based on a Hartree description of the BEC we show that - unlike repulsive impurities - attractive impurities have a singular ground state in 3d and shrink to a point-like state in 2d as the coupling approaches a critical value β*. Moreover, we find that the density of the BEC increases markedly in the vicinity of attractive impuriti...
Expand abstract - Publication status:
- Published
- Publisher copy:
- 10.1209/0295-5075/82/30004
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- Journal:
- EPL
- Volume:
- 82
- Issue:
- 3
- Pages:
- 30004-30004
- Chapter number:
- ARTN 30004
- Publication date:
- 2008-05-05
- DOI:
- EISSN:
-
1286-4854
- ISSN:
-
0295-5075
- URN:
-
uuid:418278f4-82c7-4e71-a40a-99e887f31c80
- Source identifiers:
-
6161
- Local pid:
- pubs:6161
- Copyright date:
- 2008
Journal article
Self-trapping of impurities in Bose-Einstein condensates: Strong attractive and repulsive coupling
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