Gap-Townes solitons and localized excitations in low-dimensional Bose-Einstein condensates in optical lattices

PHYSICAL REVIEW A, no. 3 (2005)

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We discuss localized ground states of Bose-Einstein condensates (BEC's) in optical lattices with attractive and repulsive three-body interactions in the framework of a quintic nonlinear Schrodinger equation which extends the Gross-Pitaevskii equation to the one-dimensional case. We use both a variational method and a self-consistent appro...更多

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