Zobrazeno 1 - 10
of 429
pro vyhledávání: '"Abdullaev F"'
Publikováno v:
Physics Letters A 491 (2023) 129206
The evolution of vector solitons under nonlinearity management is studied. The averaged over strong and rapid modulations in time of the inter-species interactions vector Gross-Pitaevskii equation (GPE) is derived. The averaging gives the appearance
Externí odkaz:
http://arxiv.org/abs/2311.05910
In the framework of coupled 1D Gross-Pitaevskii equations, we explore the dynamics of a binary Bose-Einstein condensate where the intra-component interaction is repulsive, while the inter-component one is attractive. The existence regimes of stable s
Externí odkaz:
http://arxiv.org/abs/2301.12220
We demonstrate the existence of compactons matter waves in binary mixtures of Bose-Einstein condensates (BEC) trapped in deep optical lattices (OL) subjected to equal contributions of intra-species Rashba and Dresselhaus spin-orbit coupling (SOC) und
Externí odkaz:
http://arxiv.org/abs/2212.13516
Publikováno v:
Optik - International Journal for Light and Electron Optics 274 (2023) 170545
Management of solitons in media with competing quadratic and cubic nonlinearities is investigated. Two schemes, using rapid modulations of a mismatch parameter, and of the Kerr nonlinearity parameter are studied. For both cases, the averaged in time
Externí odkaz:
http://arxiv.org/abs/2212.04168
Publikováno v:
Phys. Rev. E 104, 024222 (2021)
The dynamics of matter waves in the atomic to molecular condensate transition with a time-modulated atomic scattering length is investigated. Both the cases of rapid and slow modulations are studied. In the case of rapid modulations, the average over
Externí odkaz:
http://arxiv.org/abs/2105.10181
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys (2021)
The properties of a supersolid state (SS) in quasi-one-dimensional dipolar Bose-Einstein condensate is studied, considering two possible mechanisms of realization - due to repulsive three-body atomic interactions and quantum fluctuations in the frame
Externí odkaz:
http://arxiv.org/abs/2102.13313
Autor:
Abdullaev, F. Kh., Galimzyanov, R. M.
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys. 53, 165301 (2020)
We study an impurity immersed in the mixture of Bose ultracold gases in the regime where a quantum droplet exists. The quasi-one-dimensional geometry is considered. We find an effective attractive potential that acts by the quantum droplet onto the i
Externí odkaz:
http://arxiv.org/abs/2012.12156
Reflection of wave packets from downward potential steps and attractive potentials, known as a quantum reflection, has been explored for bright matter-wave solitons with the main emphasis on the possibility to trap them on top of a pedestal-shaped po
Externí odkaz:
http://arxiv.org/abs/2012.05658
Publikováno v:
Phys. Rev. A 101, 053616 (2020)
We study the emergence of density waves in dipolar Bose-Einstein condensates (BEC) when the strength of dipole-dipole atomic interactions is periodically varied in time. The proposed theoretical model, based on the evolution of small perturbations of
Externí odkaz:
http://arxiv.org/abs/1911.10870
Publikováno v:
Phys. Rev. A 99, 033614 (2019)
Collective oscillations of superfluid mixtures of ultra cold fermionic and bosonic atoms are investigated while varying the fermion-boson scattering length. We study the dynamics with respect to excited center of mass modes and breathing modes in the
Externí odkaz:
http://arxiv.org/abs/1903.09034