| Full text | |
| Author(s): |
Selvaraju, Chinnaiah
;
Sabari, Subramaniyan
;
Lekeufack, Olivier Tiokeng
;
Kenmogne, Fabien
;
Athavan, Nallamanian
Total Authors: 5
|
| Document type: | Journal article |
| Source: | EUROPEAN PHYSICAL JOURNAL PLUS; v. 140, n. 6, p. 12-pg., 2025-06-17. |
| Abstract | |
This study investigates the emergence of chaotic dynamics in Bose-Einstein condensates (BECs) subjected to both alternating (AC) and constant (DC) components of the interaction strength, modeled through the scattering length. We systematically explore how the interplay of AC and DC nonlinearities affects the dynamical evolution of the condensate under a tilted optical lattice potential. Various types of chaos are identified across different parametric regimes, with numerical simulations revealing a clear distinction between regular and chaotic domains. The width of the regular domains is quantified, and the influence of AC and DC components in promoting stochastic behavior is highlighted. Lyapunov exponents, Poincar & eacute; sections, and other chaos indicators then confirm the transition to chaotic dynamics, in agreement with analytical expectations. A qualitative conjecture is proposed for the role of these interactions in BEC stabilization. Our findings offer insights into the dynamic control of BECs, with potential applications in quantum simulation and coherent matter-wave engineering, in line with entanglement and quantum transport, that are crucial for developing robust and reliable quantum technologies. (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 |