Title

Lattice solitons in Bose-Einstein condensates

Authors

Authors

N. K. Efremidis;D. N. Christodoulides

Abbreviated Journal Title

Phys. Rev. A

Keywords

NONLINEAR PHOTONIC LATTICES; DISCRETE SOLITONS; ARRAYS; WAVE; DIFFRACTION; SUPERFLUID; ATOMS; Optics; Physics, Atomic, Molecular & Chemical

Abstract

We systematically study the properties of lattice solitons in Bose-Einstein condensates with either attractive or repulsive atom interactions. This is done, by exactly solving the mean-field Gross-Pitaevskii equation in the presence of a periodic potential. We find new families of lattice soliton solutions that are characterized by the position of the energy eigenvalue within the associated band structure. These include lattice solitons in condensates with either attractive or repulsive atom interactions that exist in finite or semi-infinite gaps, as well as nonlinear modes that exhibit atomic population cutoffs.

Journal Title

Physical Review A

Volume

67

Issue/Number

6

Publication Date

1-1-2003

Document Type

Article

Language

English

First Page

9

WOS Identifier

WOS:000183915200108

ISSN

1050-2947

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