| Texto completo | |
| Autor(es): |
Selvaraju, Chinnaiah
;
Sabari, Subramaniyan
;
Lekeufack, Olivier Tiokeng
;
Kenmogne, Fabien
;
Athavan, Nallamanian
Número total de Autores: 5
|
| Tipo de documento: | Artigo Científico |
| Fonte: | EUROPEAN PHYSICAL JOURNAL PLUS; v. 140, n. 6, p. 12-pg., 2025-06-17. |
| Resumo | |
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) | |
| Processo FAPESP: | 24/04174-8 - Excitações não lineares além do campo médio em condensados de Bose-Einstein dipolares |
| Beneficiário: | Sabari Subramaniyan |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 17/05660-0 - Estudos teóricos da estrutura e reações de núcleos exóticos e sistemas de muitos corpos |
| Beneficiário: | Brett Vern Carlson |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |
| Processo FAPESP: | 24/01533-7 - Dinâmica de sistemas de muitos corpos V |
| Beneficiário: | Arnaldo Gammal |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |
| Processo FAPESP: | 20/02185-1 - Dinâmica com momento angular de dois condensados bosônicos acoplados com interações de longo alcance |
| Beneficiário: | Sabari Subramaniyan |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |