Zobrazeno 1 - 10
of 34
pro vyhledávání: '"G C Katsimiga"'
Publikováno v:
New Journal of Physics, Vol 23, Iss 1, p 013015 (2021)
We present the phase diagram, the underlying stability and magnetic properties as well as the dynamics of nonlinear solitary wave excitations arising in the distinct phases of a harmonically confined spinor F = 1 Bose–Einstein condensate. Particula
Externí odkaz:
https://doaj.org/article/51fe068307cf40c2bfe5435437327d2c
Publikováno v:
New Journal of Physics, Vol 22, Iss 4, p 043007 (2020)
We study the ground state properties and non-equilibrium dynamics of two spinor bosonic impurities immersed in a one-dimensional bosonic gas upon applying an interspecies interaction quench. For the ground state of two non-interacting impurities we r
Externí odkaz:
https://doaj.org/article/50f9cd11da2a4d49850bd8e2e2aad93c
Publikováno v:
New Journal of Physics, Vol 21, Iss 4, p 043032 (2019)
We explore repulsive Fermi polarons in one-dimensional harmonically trapped few-body mixtures of ultracold atoms using as a case example a ^6 Li- ^40 K mixture. A characterization of these quasiparticle-like states, whose appearance is signaled in th
Externí odkaz:
https://doaj.org/article/623059c1f6c94781903fa8440b45e478
Publikováno v:
New Journal of Physics, Vol 20, Iss 4, p 043052 (2018)
We explore the quench dynamics of a binary Bose–Einstein condensate crossing the miscibility–immiscibility threshold and vice versa, both within and in particular beyond the mean-field approximation. Increasing the interspecies repulsion leads to
Externí odkaz:
https://doaj.org/article/adf315188df04d30849b043837e11f23
Publikováno v:
New Journal of Physics, Vol 19, Iss 12, p 123012 (2017)
The beyond mean-field (MF) dynamics of a bent dark soliton (BDS) embedded in a two-dimensional repulsively interacting Bose–Einstein condensate is explored. We examine the case of a single BDS comparing the MF dynamics to a correlated approach, the
Externí odkaz:
https://doaj.org/article/8d42a64b3b5f40e89a73c06d86ed6bec
Publikováno v:
New Journal of Physics, Vol 19, Iss 7, p 073004 (2017)
The dynamics of dark–bright (DB) solitons beyond the mean-field approximation is investigated. We first examine the case of a single DB soliton and its oscillations within a parabolic trap. Subsequently, we move to the setting of collisions, compar
Externí odkaz:
https://doaj.org/article/8e75e6f1ea7a46d5bfe8eff2c4c85454
Publikováno v:
Physical Review A. 107
The static properties, i.e., existence and stability, as well as the quench-induced dynamics of vortex-bright type excitations in two-dimensional harmonically confined spin-1 Bose-Einstein condensates are investigated. Linearly stable vortex-bright-v
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c1b899ac44c657f39d95b407631af0e4
https://doi.org/10.1103/physreva.107.013313
https://doi.org/10.1103/physreva.107.013313
Autor:
A. Romero-Ros, G. C. Katsimiga, S. I. Mistakidis, B. Prinari, G. Biondini, P. Schmelcher, P. G. Kevrekidis
Publikováno v:
Physical Review A. 105
The present work is motivated by the recent experimental realization of the Townes soliton in an effective two-component Bose-Einstein condensate by B. Bakkali-Hassan et al. [Phys. Rev. Lett. 127, 023603 (2021)]. Here, we use a similar multicomponent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::508dae1fc199aa372cc0180322169953
https://doi.org/10.1103/physreva.105.053306
https://doi.org/10.1103/physreva.105.053306
Autor:
A. Romero-Ros, Peter Schmelcher, Panayotis G. Kevrekidis, G. C. Katsimiga, Gino Biondini, Barbara Prinari
Publikováno v:
Physical Review A. 103
Matter-wave interference mechanisms in one-dimensional Bose-Einstein condensates that allow for the controlled generation of dark soliton trains upon choosing suitable box-type initial configurations are described. First, the direct scattering proble
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3afd54cd9ae9806fa11b21b3a32d9813
https://doi.org/10.1103/physreva.103.023329
https://doi.org/10.1103/physreva.103.023329
The controlled creation of dark-bright (DB) soliton trains in multi-component Bose-Einstein condensates (BECs) is a topic of ongoing interest. In this work we generalize earlier findings on the creation of dark soliton trains in single-component BECs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3cac1688860354410029ee143bf0cdd4
