138 citations · 771 across the 25 of their papers we have counts for
25 papers
Modulational instability in binary spin-orbit-coupled Bose-Einstein condensates
Ishfaq Ahmad Bhat, T. Mithun, B. A. Malomed +1
We study modulation instability (MI) of flat states in two-component spin-orbit-coupled (SOC) Bose-Einstein condensates (BECs) in the framework of coupled Gross-Pitaevskii equation…
Domain walls and bubble-droplets in immiscible binary Bose gases
G. Filatrella, B. A. Malomed, M. Salerno
The existence and stability of domain walls (DWs) and bubble-droplet (BD) states in binary mixtures of quasi-one-dimensional ultracold Bose gases with inter- and intra-species repu…
Nonlinear modes and symmetries in linearly-coupled pairs of PT-invariant dimers
K. Li, P. G. Kevrekidis, B. A. Malomed
The subject of the work are pairs of linearly coupled PT-symmetric dimers. Two different settings are introduced, namely, straight-coupled dimers, where each gain site is linearly…
Instabilities, solitons, and rogue waves in PT-coupled nonlinear waveguides
Yu. V. Bludov, R. Driben, V. V. Konotop +1
We considered the modulational instability of continuous-wave backgrounds, and the related generation and evolution of deterministic rogue waves in the recently introduced parity-t…
Dynamics of higher-order solitons in regular and PT-symmetric nonlinear couplers
R. Driben, B. A. Malomed
Dynamics of symmetric and antisymmetric 2-solitons and 3-solitons is studied in the model of the nonlinear dual-core coupler and its PT-symmetric version. Regions of the convergenc…
Quasi-one-dimensional Bose-Einstein condensates in nonlinear lattices
L. Salasnich, B. A. Malomed
We consider the three-dimensional (3D) mean-field model for the Bose-Einstein condensate (BEC), with a 1D nonlinear lattice (NL), which periodically changes the sign of the nonline…
Spatiotemporal vortex solitons in hexagonal arrays of waveguides
H. Leblond, B. A. Malomed, D. Mihalache
By means of a systematic numerical analysis, we demonstrate that hexagonal lattices of parallel linearly-coupled waveguides, with the intrinsic cubic self-focusing nonlinearity, gi…
Gap solitons in elongated geometries: the one-dimensional Gross-Pitaevskii equation and beyond
A. Muñoz Mateo, V. Delgado, Boris A. Malomed
We report results of a systematic analysis of matter-wave gap solitons (GSs) in three-dimensional self-repulsive Bose-Einstein condensates (BECs) loaded into a combination of a cig…
Rabi-Josephson oscillations and self-trapped dynamics in atomic junctions with two bosonic species
G. Mazzarella, B. Malomed, L. Salasnich +2
We investigate the dynamics of two-component Bose-Einstein condensates (BECs), composed of atoms in two distinct hyperfine states, which are linearly coupled by two-photon Raman tr…
Two-dimensional vector solitons stabilized by a linear or nonlinear lattice acting in one component
Olga V. Borovkova, Boris A. Malomed, Yaroslav V. Kartashov
The subject of the work is the stabilization of two-dimensional (2D) two-component (vector) solitons, in media with the attractive cubic nonlinearity, against the collapse by a lin…
Transition to miscibility in linearly coupled binary dipolar Bose-Einstein condensates
G. Gligoric, A. Maluckov, M. Stepic +2
We investigate effects of dipole-dipole (DD) interactions on immiscibility-miscibility transitions (IMTs) in two-component Bose-Einstein condensates (BECs) trapped in the harmonic-…
Discrete surface solitons in two dimensions
H. Susanto, P. G. Kevrekidis, B. A. Malomed +2
We investigate fundamental localized modes in 2D lattices with an edge (surface). Interaction with the edge expands the stability area for ordinary solitons, and induces a differen…
Vortices in a Bose-Einstein condensate confined by an optical lattice
P. G. Kevrekidis, R. Carretero-González, G. Theocharis +2
We investigate the dynamics of vortices in repulsive Bose-Einstein condensates in the presence of an optical lattice (OL) and a parabolic magnetic trap. The dynamics is sensitive t…
Stability of dark solitons in a Bose-Einstein condensate trapped in an optical lattice
P. G. Kevrekidis, R. Carretero-González, G. Theocharis +2
We investigate the stability of dark solitons (DSs) in an effectively one-dimensional Bose-Einstein condensate in the presence of the magnetic parabolic trap and an optical lattice…
Families of Matter-Waves for Two-Component Bose-Einstein Condensates
P. G. Kevrekidis, H. Nistazakis, D. J. Frantzeskakis +2
We produce several families of solutions for two-component nonlinear Schrödinger/Gross-Pitaevskii equations. These include domain walls and the first example of an antidark or gray…
Polychromatic solitons in a quadratic medium
I. N. Towers, B. A. Malomed
We introduce the simplest model to describe parametric interactions in a quadratically nonlinear optical medium with the fundamental harmonic containing two components with (slight…
Adiabaticity in Nonlinear Quantum Dynamics: Bose-Einstein Condensate in a Time-Varying Box
Y. B. Band, B. Malomed, M. Trippenbach
A simple model of an atomic Bose-Einstein condensate in a box whose size varies with time is studied to determine the nature of adiabaticity in the nonlinear dynamics obtained with…
Nonlinear parametric instability in double-well lattices
Jaroslav Riedel, Eva Majernikova, Boris A. Malomed
A possibility of a nonlinear resonant instability of uniform oscillations in dynamical lattices with harmonic intersite coupling and onsite nonlinearity is predicted. Numerical sim…
Stability of narrow beams in bulk Kerr-type nonlinear media
B. Malomed, K. Marinov, D. Pushkarov +1
We consider (2+1)-dimensional beams, whose transverse size may be comparable to or smaller than the carrier wavelength, on the basis of an extended version of the nonlinear Schrödi…
Light Bullet Modes in Self-Induced-Transparency Media with Refractive Index Modulation
M. Blaauboer, G. Kurizki, B. A. Malomed
We predict the existence of a new type of spatiotemporal solitons ("light bullets") in two-dimensional self-induced-transparency media with refractive index modulation in the direc…
Nonsteady condensation and evaporation waves
Osamu Inomoto, Shoichi Kai, Boris Malomed
We study motion of a phase transition front at a constant temperature between stable and metastable states in fluids with the universal Van der Waals equation of state (which is va…
Soliton formation from a pulse passing the zero-dispersion point in a nonlinear Schrödinger equation
S. R. Clarke, R. H. J. Grimshaw, Boris A. Malomed
We consider in detail the self-trapping of a soliton from a wave pulse that passes from a defocussing region into a focussing one in a spatially inhomogeneous nonlinear waveguide,…
Kink in a periodically modulated disordered system
Eva Majernikova, Jaroslav Riedel, Boris A. Malomed
We consider a dc-driven damped sine-Gordon model with a small nonlinear spatial-disorder term, onto which a sinusoidal modulation is superimposed. It describes, e.g., a weakly diso…
The ac-Driven Motion of Dislocations in a Weakly Damped Frenkel-Kontorova Lattice
Giovanni Filatrella, Boris A. Malomed
By means of numerical simulations, we demonstrate that ac field can support stably moving collective nonlinear excitations in the form of dislocations (topological solitons, or kin…