Angular momentum dynamics in two-component Bose gases with long range interactions

• Grant number: 20/02185-1
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: May 01, 2022
• End date: July 31, 2023
• Field of knowledge: Physical Sciences and Mathematics - Physics - Atomic and Molecular Physics
• Principal Investigator: Lauro Tomio
• Grantee: Sabari Subramaniyan
• Host Institution: Instituto de Física Teórica (IFT). Universidade Estadual Paulista (UNESP). Campus de São Paulo. São Paulo , SP, Brazil
• Associated research grant: 17/05660-0 - Theoretical studies of the structure and reactions of exotic nuclei and many-body systems, AP.TEM

Abstract

The present proposal is aimed to explore the phase diagrams of vortex-lattice patterns, varying the strength of inter- and intra-species contact interactions versus the rotation frequency, for different dipolar mixtures. The interplay of short- and long-range interactions will trigger phenomena including spin waves, ferromagnetic order, and other exotic phases, which will give in turn crucial inputs for related studies in the condensed matter community. Quantized vortices are of relevance for superconductors, thus exploring their dynamics in cold gases enables an accessible laboratory platform for the conception of related quantum technologies. Earlier work extensively focused on static ground-state properties of vortex lattices and binary systems. Applications in device engineering will often require dynamical functionality; hence we shall extend these studies to interesting time dependences. (AU)

Scientific publications

(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)

SABARI, S.; KUMAR, R. KISHOR; RADHA, R.; MURUGANANDAM, P.. Stability window of trapless polariton Bose-Einstein condensates. PHYSICAL REVIEW B, v. 105, n. 22, p. 7-pg., 2022-06-27. (17/05660-0, 20/02185-1)

SABARI, S.; LEKEUFACK, O. T.; YAMGOUE, S. B.; TAMILTHIRUVALLUVAR, R.; RADHA, R.. Role of Higher-Order Interactions on the Modulational Instability of Bose-Einstein Condensate Trapped in a Periodic Optical Lattice. INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS, v. 61, n. 8, p. 15-pg., 2022-08-27. (20/02185-1, 17/05660-0)

SASIREKA, RAJMOHAN; SABARI, SUBRAMANIYAN; UTHAYAKUMAR, AMBIKAPATHY; TOMIO, LAURO. Domain formation of modulation instability in spin-orbit-Rabi coupled Gross-Pitaevskii equation with cubic-quintic interactions. Physics Letters A, v. 480, p. 10-pg., 2023-07-04. (17/05660-0, 20/02185-1)