Dynamics of many-body systems V

• Grant number: 24/01533-7
• Support Opportunities: Research Projects - Thematic Grants
• Start date: November 01, 2024
• End date: October 31, 2029
• Field of knowledge: Physical Sciences and Mathematics - Physics - Atomic and Molecular Physics
• Principal Investigator: Arnaldo Gammal
• Grantee: Arnaldo Gammal
• Host Institution: Instituto de Física (IF). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• City of the host institution: São Paulo
• Principal investigators: Airton Deppman ; Lauro Tomio
• Associated researchers: Silvio Antonio Sachetto Vitiello
• Associated scholarship(s): 25/22475-8 - Systematic analysis of observables in nucleus-nucleus collisions., BP.DR; 25/20762-0 - Ultracold atoms and molecules in complex geometries, BP.PD; 25/03200-8 - Rayleigh instability in quantum fluids, BP.IC; 24/04174-8 - Nonlinear excitations beyond the mean-field in dipolar Bose-Einstein condensates, BP.PD

Abstract

The main focus of the present thematic proposal is contemplating theoretical investigations on dynamics related to ultra-cold atoms and weakly-bound nuclear and atomic physics close to zero temperatures, which are associated with the corresponding phenomenology that is being intensively studied in the last decades in hundred laboratories around the world. In this regard, our theoretical proposals are in line with such experimental activities. Concerned with cold-atom physics, the studies of our theoretical group in São Paulo are part of the international effort to go deep in the fundamental aspects of quantum theories, in view of possible future applications. In this regard, we see as the main target a better understanding of all dynamics associated with the atomic Bose-Einstein condensation, as well as ultra-cold Bose-Fermi mixtures, having the main targets possible applications in superfluidity, superconductivity and quantum computers, among other new quantum technologies relying in the understanding of fundamental quantum aspects.With respect to nuclear, hadronic physics and Theoretical Field Theory, the main interest in the actualtheoretical investigations are on understanding fundamental hadronic interactions, together with nuclear physics aspects related to weakly-bound and radioactive nuclei, with excess of neutrons or protons, in particular by considering nuclear reactions of light weakly-bound nuclei against heavy nuclei. These researchers are expected to be relevant not only in understanding the fundamental structure of nuclei, but also considering their role in astrophysics. (AU)

Scientific publications

(6)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

KUMAR, R. KISHOR; SABARI, S.; GAMMAL, ARNALDO; TOMIO, LAURO. Rayleigh-Taylor, Kelvin-Helmholtz, and immiscible-to-miscible quenching instabilities in binary Bose-Einstein condensates. PHYSICAL REVIEW A, v. 112, n. 3, p. 23-pg., 2025-09-11. (24/01533-7, 24/04174-8)

SASIREKA, R.; SABARI, S.; UTHAYAKUMAR, A.; TOMIO, LAURO. Modulational instability of Bose-Einstein condensates with inter-spin-orbit coupling in deep optical lattice. CHAOS SOLITONS & FRACTALS, v. 201, p. 16-pg., 2025-12-01. (17/05660-0, 24/04174-8, 20/02185-1, 24/01533-7)

SASIREKA, RAJMOHAN; LEKEUFACK, OLIVIER TIOKENG; UTHAYAKUMAR, AMBIKAPATHY; SABARI, SUBRAMANIYAN. Stability analysis of 3D cubic-quintic Gross-Pitaevskii equation with elastic and inelastic collisions. AIP ADVANCES, v. 15, n. 4, p. 7-pg., 2025-04-01. (24/01533-7, 20/02185-1, 24/04174-8)

SELVARAJU, CHINNAIAH; SABARI, SUBRAMANIYAN; LEKEUFACK, OLIVIER TIOKENG; KENMOGNE, FABIEN; ATHAVAN, NALLAMANIAN. Chaotic dynamics of Bose-Einstein condensates with tunable scattering length trapped in a tilted optical lattice potential. EUROPEAN PHYSICAL JOURNAL PLUS, v. 140, n. 6, p. 12-pg., 2025-06-17. (24/04174-8, 17/05660-0, 24/01533-7, 20/02185-1)

SABARI, S.; SASIREKA, R.; RADHA, R.; UTHAYAKUMAR, A.; TOMIO, LAURO. Vortices in tunable dipolar Bose-Einstein condensates with attractive interactions. PHYSICAL REVIEW A, v. 111, n. 5, p. 10-pg., 2025-05-30. (24/04174-8, 17/05660-0, 24/01533-7, 20/02185-1)

DOS SANTOS, G. H.; DE BRITO, L. F. CALAZANS; GAMMAL, A.; KAMCHATNOV, A. M.. Supersonic flow past an obstacle in a quasi-two-dimensional Lee-Huang-Yang quantum fluid. PHYSICAL REVIEW A, v. 112, n. 3, p. 8-pg., 2025-09-15. (24/01533-7, 23/17459-8)