Simple and efficient generation of gap solitons in Bose-Einstein condensates

Abstract

We suggest an efficient method for generating matter-wave gap solitons in a repulsive Bose-Einstein condensate, when the gap soliton is formed from a condensate cloud in a harmonic trap after turning on a one-dimensional optical lattice. We demonstrate numerically that this approach does not require preparing the initial atomic wave packet in a specific state corresponding to the edge of the Brillouin zone of the spectrum, and losses that occur during the soliton generation process can be suppressed by an appropriate adiabatic switching of the optical lattice.

7 pages, 10 figures

References in corpus (2)

• Controlled generation and steering of spatial gap solitons
• Nonlinear Bloch-wave interaction and Bragg scattering in optically-induced lattices

Cited by in corpus (8)

• Tightly bound gap solitons in a Fermi gas
• Localized gap soliton trains of Bose-Einstein condensates in an optical lattice
• Symbiotic gap and semi-gap solitons in Bose-Einstein condensates
• Gap solitons in superfluid boson-fermion mixtures
• Competition between attractive and repulsive interactions in two-component Bose-Einstein condensates trapped in an optical lattice
• Quasi-one-dimensional approximation for Bose-Einstein condensates transversely trapped by a funnel potential
• Dissipative solitons which cannot be trapped
• Interactions and Collisions of Discrete Breathers in Two-Species Bose-Einstein Condensates in Optical Lattices