Theory of nonlinear matter waves in optical lattices

VA Brazhnyi, VV Konotop - Modern Physics Letters B, 2004 - World Scientific
We consider several effects of the matter wave dynamics which can be observed in Bose–
Einstein condensates embedded into optical lattices. For low-density condensates, we …

Soliton shape and mobility control in optical lattices

YV Kartashov, VA Vysloukh, L Torner - Progress in Optics, 2009 - Elsevier
We present a progress overview focused on the recent theoretical and experimental
advances in the area of soliton manipulation in optical lattices. Optical lattices offer the …

Multidimensional solitons in a low-dimensional periodic potential

BB Baizakov, BA Malomed, M Salerno - Physical Review A—Atomic, Molecular …, 2004 - APS
Using the variational approximation and direct simulations in real and imaginary time, we
find stable two-dimensional (2D) and 3D solitons in the self-attractive Gross-Pitaevskii …

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

FK Abdullaev, M Salerno - Physical Review A—Atomic, Molecular, and Optical …, 2005 - APS
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 …

Stable three-dimensional spatiotemporal solitons in a two-dimensional photonic lattice

D Mihalache, D Mazilu, F Lederer, YV Kartashov… - Physical Review E …, 2004 - APS
We investigate the existence and stability of three-dimensional spatiotemporal solitons in
self-focusing cubic Kerr-type optical media with an imprinted two-dimensional harmonic …

[HTML][HTML] Two-dimensional Dirac particles in a Pöschl-Teller waveguide

RR Hartmann, ME Portnoi - Scientific Reports, 2017 - nature.com
We obtain exact solutions to the two-dimensional (2D) Dirac equation for the one-
dimensional Pöschl-Teller potential which contains an asymmetry term. The eigenfunctions …

Matter-wave gap vortices in optical lattices

EA Ostrovskaya, YS Kivshar - Physical review letters, 2004 - APS
We predict the existence of spatially localized nontrivial topological states of a Bose-Einstein
condensate with repulsive atomic interactions confined by an optical lattice. These nonlinear …

Stabilization of one-dimensional solitons against the critical collapse by quintic nonlinear lattices

J Zeng, BA Malomed - Physical Review A—Atomic, Molecular, and Optical …, 2012 - APS
It has recently been discovered that stabilization of two-dimensional (2D) solitons against
the critical collapse in media with cubic nonlinearity by means of nonlinear lattices (NLs) is a …

Solitons and solitary vortices in pancake-shaped Bose-Einstein condensates

L Salasnich, BA Malomed - Physical Review A—Atomic, Molecular, and Optical …, 2009 - APS
We study fundamental and vortical solitons in disk-morphed Bose-Einstein condensates
(BECs) subject to strong confinement along the axial direction. Starting from the three …

Stable soliton complexes in two-dimensional photonic lattices

YV Kartashov, AA Egorov, L Torner… - Optics letters, 2004 - opg.optica.org
We show that two-dimensional photonic Kerr nonlinear lattices can support stable soliton
complexes composed of several solitons packed together with appropriately engineered …