Fragmented Metastable States Exist in an Attractive Bose-Einstein Condensate for Atom Numbers Well above the Critical Number of the Gross-Pitaevskii Theory
Journal Article
·
· Physical Review Letters
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universitaet Heidelberg, Im Neuenheimer Feld 229, D-69120 Heidelberg (Germany)
It is well known that attractive condensates do not posses a stable ground state in three dimensions. The widely used Gross-Pitaevskii theory predicts the existence of metastable states up to some critical number N{sub cr}{sup GP} of atoms. It is demonstrated here that fragmented metastable states exist for atom numbers well above N{sub cr}{sup GP}. The fragments are strongly overlapping in space. The results are obtained and analyzed analytically as well as numerically. The implications are discussed.
- OSTI ID:
- 21024642
- Journal Information:
- Physical Review Letters, Vol. 100, Issue 4; Other Information: DOI: 10.1103/PhysRevLett.100.040402; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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