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cond-mat2003
Stability of the quantized circulation of an attractive Bose-Einstein condensate in a rotating torus
Rina Kanamoto, Hiroki Saito, Masahito Ueda
We investigate rotational properties of a system of bosons with attractive interactions confined in a one-dimensional torus. Two kinds of ground states, uniform-density and bright-…
cond-mat2002
Quantum phase transition in one-dimensional Bose-Einstein condensates with attractive interactions
Rina Kanamoto, Hiroki Saito, Masahito Ueda
Motivated by the recent development of the Feshbach technique, we studied the ground and low-lying excited states of attractive Bose-Einstein condensates on a one-dimensional ring…