期刊
PHYSICAL REVIEW LETTERS
卷 100, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.100.040402
关键词
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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-cr(GP) of atoms. It is demonstrated here that fragmented metastable states exist for atom numbers well above N-cr(GP). The fragments are strongly overlapping in space. The results are obtained and analyzed analytically as well as numerically. The implications are discussed.
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