Zobrazeno 1 - 10
of 15
pro vyhledávání: '"O. O. Prikhodko"'
Autor:
Yakimenko, A. I., Bidasyuk, Yu. M., Vilchinskii, O. O. Prikhodko S. I., Ostrovskaya, E. A., Kivshar, Yu. S.
Publikováno v:
Phys. Rev. A 88, 043637 (2013)
We study formation and stabilization of vortex rings in atomic Bose-Einstein condensates. We suggest a novel approach for generating and trapping of vortex rings by 'optical tweezers'--two blue-detuned optical beams forming a toroidal void in the bul
Externí odkaz:
http://arxiv.org/abs/1308.2110
Publikováno v:
Physical Review A. 105
We report on a theoretical study of a ring-shaped Bose-Einstein condensate with Raman-induced spin-orbital-angular-momentum coupling. We analyze the structure of the ground-state of the system depending different physical parameters and reveal a pecu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::64b12352216d3ec8a36467ead4e355a0
https://doi.org/10.1103/physreva.105.023320
https://doi.org/10.1103/physreva.105.023320
We present a detailed study of the spectrum and dispersion of Bogoliubov quasiparticles in two coupled elongated Bose-Einstein condensates. We develop an analytically solvable model that approximates two infinite homogeneous condensates and compare i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4641d9fc9533ad6e4c4941d12da4df6
Autor:
Y. M. Bidasyuk, O. O. Prikhodko
Publikováno v:
Ukrainian Journal of Physics. 66:198
We propose an alternative implementation of the projected Gross–Pitaevskki equation adapted for a numerical modeling of the atomic Bose–Einstein condensate trapped in a toroidally shaped potential. We present an accurate efficient scheme to evalu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::57c2e7a3aef54957bbe607f539d8e1c0
https://doi.org/10.15407/ujpe66.3.198
https://doi.org/10.15407/ujpe66.3.198
In the framework of the stochastic projected Gross-Pitaevskii equation we investigate finite-temperature dynamics of a bosonic Josephson junction (BJJ) formed by a Bose-Einstein condensate of atoms in a two-well trapping potential. We extract the cha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b7ff18375923b68f2ac9c99422ffdeed
We study the resonant excitation of sound modes from Josephson oscillations in Bose-Einstein condensates. From the simulations for various setups using the Gross-Pitaevskii mean-field equations and Josephson equations we observe additional tunneling
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e3f0bd785b040303be7c27b90b2ee28
Publikováno v:
Physics Letters A. 366:422-427
We study the bound states of two-dimensional bright solitons in nonlocal nonlinear media. The general properties and stability of these multisolitary structures are investigated analytically and numerically. We have found that a steady bound state of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b35a6a8cb603ac4a721a18d3b0dda5e9
https://doi.org/10.1016/j.physleta.2007.02.042
https://doi.org/10.1016/j.physleta.2007.02.042
Autor:
Y. M. Bidasyuk, Alexander Yakimenko, A. V. Chumachenko, Michael Weyrauch, S. I. Vilchinskii, O. O. Prikhodko
We reveal that Hopf solitons can be stabilized in rotating atomic Bose-Einstein condensate. The Hopfion is a matter-wave vortex complex which carries two independent winding numbers. Such a topological solitonic structure results from a superfluid fl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::739e5b62fbfe40a3c80097d6c2c6e1d7
http://arxiv.org/abs/1508.01697
http://arxiv.org/abs/1508.01697
Publikováno v:
2013 International Conference on Advanced Optoelectronics and Lasers (CAOL 2013).
We use the combination of the digital holographic interference and electron microscopy methods for study of 3D morphology of blood erythrocytes of rats that took water with high concentrations of heavy metal salts for a month. The obtained results sh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2293fd942974dfe16f11338f12304acd
https://doi.org/10.1109/caol.2013.6657660
https://doi.org/10.1109/caol.2013.6657660
Autor:
Yuri S. Kivshar, Y. M. Bidasyuk, Elena A. Ostrovskaya, Alexander Yakimenko, S. I. Vilchinskii, O. O. Prikhodko
We study formation and stabilization of vortex rings in atomic Bose-Einstein condensates. We suggest a novel approach for generating and trapping of vortex rings by 'optical tweezers'--two blue-detuned optical beams forming a toroidal void in the bul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::61df0b881b756ffdfbb331c4d40c2f96
http://arxiv.org/abs/1308.2110
http://arxiv.org/abs/1308.2110