| Full text | |
| Author(s): |
Sabari, S.
;
Sasireka, R.
;
Radha, R.
;
Uthayakumar, A.
;
Tomio, Lauro
Total Authors: 5
|
| Document type: | Journal article |
| Source: | PHYSICAL REVIEW A; v. 111, n. 5, p. 10-pg., 2025-05-30. |
| Abstract | |
We investigate the formation of vortices in quasi-two-dimensional dipolar Bose-Einstein condensates (BECs) through the interplay between two-body contact and long-ranged dipole-dipole interactions (DDIs), as both interactions can be tuned from repulsive to attractive. By solving the associated Gross-Pitaevskii equation for a rotating system, our initial approach concentrates on stabilizing a collapsing condensate with attractive s-wave two-body interactions by employing sufficiently large repulsive DDIs. Subsequently, the same procedure was applied after reversing the signs of both interactions to evaluate the sensitivity of vortex formation to such an interchange of interactions. As a reference to guide our investigation, valid for generic dipolar atomic species, we have assumed a condensate with the strong dipolar dysprosium isotope, 164Dy. The correlation of the results with other dipolar BEC systems was exemplified by considering rotating BECs with two other isotopes, namely 168Er and 52Cr. For a purely dipolar condensate (no contact interactions) under fixed rotation, we show how the number of visible vortices increases as the DDI becomes more repulsive, accomplished by tuning the orientation of the dipoles through a characteristic angle parameter. (AU) | |
| FAPESP's process: | 24/04174-8 - Nonlinear excitations beyond the mean-field in dipolar Bose-Einstein condensates |
| Grantee: | Sabari Subramaniyan |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 17/05660-0 - Theoretical studies of the structure and reactions of exotic nuclei and many-body systems |
| Grantee: | Brett Vern Carlson |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 24/01533-7 - Dynamics of many-body systems V |
| Grantee: | Arnaldo Gammal |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 20/02185-1 - Angular momentum dynamics in two-component Bose gases with long range interactions |
| Grantee: | Sabari Subramaniyan |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |