Szczegóły publikacji
Opis bibliograficzny
Controlling vortex lattice structure of binary Bose-Einstein condensates via disorder-induced vortex pinning / Dibyendu KUIRI, Thudiyangal Mithun, Bishwajyoti Dey // Physical Review. A ; ISSN 2469-9926. — 2024 — vol. 109 iss. 6 art. no. 063333, s. 063333-1–063333-10. — Bibliogr. s. 063333-8–063333-10, Abstr. — Publikacja dostępna online od: 2024-06-27. — D. Kuiri – dod. afiliacja: SP Pune University, India
Autorzy (3)
- AGHKuiri Dibyendu
- Mithun Thudiyangal
- Dey Bishwajyoti
Dane bibliometryczne
| ID BaDAP | 154186 |
|---|---|
| Data dodania do BaDAP | 2024-07-04 |
| Tekst źródłowy | URL |
| DOI | 10.1103/PhysRevA.109.063333 |
| Rok publikacji | 2024 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Physical Review, A |
Abstract
We study the vortex pinning effect on the vortex lattice structure of the rotating two-component Bose-Einstein condensates (BECs) in the presence of impurities or disorder by numerically solving the time-dependent coupled Gross-Pitaevskii equations. We investigate the transition of the vortex lattice structures by changing conditions such as angular frequency, the strength of the inter-component interaction and pinning potential, and the lattice constant of the periodic pinning potential. We show that even a single impurity pinning potential can change the unpinned vortex lattice structure from triangular to square or from triangular to a structure which is the overlap of triangular and square. In the presence of a periodic pinning potential or optical lattice, we observe the structural transition from the unpinned vortex lattice to the pinned vortex lattice structure of the optical lattice. In the presence of a random pinning potential or disorder, the vortex lattice melts following a two-step process by creation of lattice defects, dislocations, and disclinations, with the increase of rotational frequency, similar to that observed for single-component Bose-Einstein condensates. However, for the binary BECs, we show that the two-step vortex lattice melting also occurs with increasing strength of the intercomponent interaction.
