2026-04-13T01:03:54Zhttps://recercat.cat/oai/requestoai:recercat.cat:2445/995502025-12-05T16:47:14Zcom_2072_1057col_2072_478823col_2072_478917
RECERCAT
author
Garcia-March, M. A.
author
Mazzarella, G.
author
Dell'Anna, L.
author
Juliá-Díaz, Bruno
author
Salasnich, L.
author
Polls Martí, Artur
2016-06-15T16:18:23Z2016-06-15T16:18:23Z2014-06-062016-06-15T16:18:28Z
We consider an ultracold bosonic binary mixture confined in a quasi-one-dimensional double-well trap. The two bosonic components are assumed to be two hyperfine internal states of the same atom. We suppose that these two components are spin-orbit coupled to each other. We employ the two-mode approximation starting from two coupled Gross-Pitaevskii equations and derive a system of ordinary differential equations governing the temporal evolution of the interwell population imbalance of each component and of the polarization, which is the imbalance of the total populations of the two species. From this set of equations we disentangle the different macroscopic quantum tunneling and self-trapping scenarios occurring for both population imbalances and the polarization in terms of the interplay between the interatomic interactions and the other relevant energies in the problem, like the spin-orbit coupling or the conventional tunneling term. We find a rich dynamics in all three variables and discuss the experimental feasibility of such a system.
(c) American Physical Society, 2014 info:eu-repo/semantics/openAccess
Bosons
Condensació de Bose-Einstein
Equacions diferencials ordinàries
Polarització (Física nuclear)
Bosons
Bose-Einstein condensation
Ordinary differential equations
Polarization (Nuclear physics)
Josephson physics of spin-orbit-coupled elongated Bose-Einstein condensates
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion