2026-04-17T03:40:34Zhttps://recercat.cat/oai/requestoai:recercat.cat:2445/2205842025-12-05T16:15:23Zcom_2072_1057col_2072_478823col_2072_478904col_2072_478917
RECERCAT
author
Rovirola Metcalfe, Marc
author
Briongos-Merino, Héctor
author
Juliá-Díaz, Bruno
author
Guilleumas, Montserrat
2025-04-24T16:06:04Z2025-04-24T16:06:04Z2024-06-252025-04-24T16:06:04Z
We consider a ring-shaped triple-well potential with few polar bosons with in-plane dipole orientation. By diagonalizing the extended Bose-Hubbard Hamiltonian, we investigate the ground-state properties of the system as we rotate the dipole angle and vary the on-site and dipole-dipole interaction strengths. We find that the anisotropic character of the dipolar interactions, as well as the competition between dipole and on-site interactions, leads to different ground states and that the entanglement between sites also depends on the number of particles. We further characterize the system by studying the condensed fraction and coherence properties for different polarization angles, highlighting the possible effect of the dipolar interaction as a manipulation tool.
(c) American Physical Society, 2024 info:eu-repo/semantics/openAccess
Condensació de Bose-Einstein
Bosons
Bose-Einstein condensation
Bosons
Ultracold dipolar bosons trapped in atomtronic circuits
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion