| Full text | |
| Author(s): |
Sabari, S.
;
Lekeufack, O. T.
;
Yamgoue, S. B.
;
Tamilthiruvalluvar, R.
;
Radha, R.
Total Authors: 5
|
| Document type: | Journal article |
| Source: | INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS; v. 61, n. 8, p. 15-pg., 2022-08-27. |
| Abstract | |
In this paper, we investigate the impact of higher-order interactions on the modulational instability (MI) of Bose-Einstein Condensates (BECs) immersed in an optical lattice potential. We derive the new variational equations for the time evolution of amplitude, phase of modulational perturbation, and effective potential for the system. Through effective potential techniques, we find that high density attractive and repulsive BECs exhibit new character with direct impact over the MI phenomenon. Results of intensive numerical investigations are presented and their convergence with the above semi analytical approach is brought out. (AU) | |
| 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 |
| 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 |