Effects of spatially inhomogeneous atomic interactions on Bose-Einstein condensates in optical lattices
arXiv:1109.1117 · doi:10.1016/j.physleta.2012.03.038
Abstract
An interplay of optical lattices and nonlinear impurities in controlling the dynamics of Bose-Einstein condensate bright solitons is investigated using effective potential approach. The ability of pushing the solitons into or away from the impurity region by changing both lattice and impurity parameters is suggested. A possibility for the existence of stable fundamental gap solitons, which appear to satisfy an inverted Vakhitov-Kolokolov criterion, is examined.
14 pages, 19 figures
References in corpus (14)
- Many-Body Physics with Ultracold Gases
- Tuning the scattering length with an optically induced Feshbach resonance
- Localized nonlinear waves in systems with time- and space-modulated nonlinearities
- Controlling a magnetic Feshbach resonance with laser light
- Gap solitons in Bose-Einstein condensates in linear and nonlinear optical lattices
- Faraday waves in binary non-miscible Bose-Einstein condensates
- Nonlinear Bose-Einstein-condensate Dynamics Induced by a Harmonic Modulation of the s-wave Scattering Length
- Matter-wave solitons with a periodic, piecewise-constant nonlinearity
- Combination of a magnetic Feshbach resonance and an optical bound-to-bound transition
- Delocalizing transition in one-dimensional condensates in optical lattices due to inhomogeneous interactions
- Gap solitons in superfluid boson-fermion mixtures
- Resonant scattering of matter wave gap-solitons by optical lattice defects
- Fast Converging Path Integrals for Time-Dependent Potentials II: Generalization to Many-body Systems and Real-Time Formalism
- SPEEDUP Code for Calculation of Transition Amplitudes via the Effective Action Approach
Cited by in corpus (6)
- Quench Dynamics of Finite Bosonic Ensembles in Optical Lattices with Spatially Modulated Interactions
- Split and overlapped binary solitons in optical lattices
- Quantification of the memory effect of steady-state currents from interaction-induced transport in quantum systems
- On the information entropy of matter-waves in quasi-disorder potentials
- Collisionally inhomogeneous Bose-Einstein condensates with binary and three body interactions in a bichromatic optical lattice
- Localized modes in two-dimensional Schroedinger lattices with a pair of nonlinear sites