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Study of properties of Bose-Einstein Condensate: dipolar atoms and condensate of fermions

Grant number: 12/00451-0
Support type:Research Projects - Thematic Grants
Duration: May 01, 2012 - April 30, 2018
Field of knowledge:Physical Sciences and Mathematics - Physics - Atomic and Molecular Physics
Principal Investigator:Sadhan Kumar Adhikari
Grantee:Sadhan Kumar Adhikari
Home Institution: Instituto de Física Teórica (IFT). Universidade Estadual Paulista (UNESP). Campus de São Paulo. São Paulo , SP, Brazil
Associated grant(s):14/07795-1 - Few-body systems in the low-energy regime: antimatter physics of protonium formation and four-atomic HD+H2 and HD+HD scattering at cold and ultra-cold temperatures, AV.EXT
Associated scholarship(s):13/07213-0 - Static and dynamical properties of spinor condensates, BP.PD
12/21871-7 - Study on properties of dipolar Bose-Einstein Condensates, BP.PD

Abstract

We will study the static and dynamic properties of a trapped Bose-Einstein condensate. A conventional condensate has only aweak atomic interaction of short range. The study of Bose-Einstein condensates will be extended to include condensates of dipolar bosonic atoms and also of fermionic atoms. A Bose-Einstein condensate of dipolar atoms has long-range anisotropic dipolar interaction and has distinct stability properties and can lead to the formation of stable soliton in one and two spatial dimensions only under the action of a weak periodic potential of optical lattice. In the propagation of sound and the collapse of dipolar condensates, we have the manifestation ofanisotropic interaction. The sound travels at different speeds in different directions. The soliton may also have an anisotropic structure. Because of the Pauli principle the condensate of fermions is more stable and allows the study in the region of strong interaction. Various topics of trapped condensate will be studied, such as the formation of solitons and vortices, propagation of sound and shock wave, the strong interaction limit, dynamic oscillation,coupled interacting condensates, collapse, etc. We will study these issues using a time-dependent mean-field formalism. In the case of weak interaction this procedure reduces to the Gross-Pitaevskii equation. We will solve the mean-field equation numerically and also using the variational approximation to study the properties of the condensates. (AU)

Scientific publications (26)
(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)
ADHIKARR, S. K. Phase separation of vector solitons in spin-orbit-coupled spin-1 condensates. Physical Review A, v. 100, n. 6 DEC 6 2019. Web of Science Citations: 0.
KUMAR, RAMAVARMARAJA KISHOR; LONCAR, VLADIMIR; MURUGANANDAM, PAULSAMY; ADHIKARI, SADHAN K.; BALAZ, ANTUN. C and Fortran OpenMP programs for rotating Bose-Einstein condensates. COMPUTER PHYSICS COMMUNICATIONS, v. 240, p. 74-82, JUL 2019. Web of Science Citations: 4.
ADHIKARI, S. K. A self-bound matter-wave boson-fermion quantum ball. LASER PHYSICS LETTERS, v. 15, n. 9 SEP 2018. Web of Science Citations: 5.
ADHIKARI, S. K. Improved effective-range expansions for small and large values of scattering length. European Journal of Physics, v. 39, n. 5 SEP 2018. Web of Science Citations: 0.
ADHIKARI, S. K.; SALASNICH, L. Vortex lattice in the crossover of a Bose gas from weak coupling to unitarity. SCIENTIFIC REPORTS, v. 8, JUN 11 2018. Web of Science Citations: 7.
GAUTAM, SANDEEP; ADHIKARI, S. K. Three-dimensional vortex-bright solitons in a spin-orbit-coupled spin-1 condensate. Physical Review A, v. 97, n. 1 JAN 25 2018. Web of Science Citations: 15.
ADHIKARI, S. K. Symmetry breaking, Josephson oscillation and self-trapping in a self-bound three-dimensional quantum ball. SCIENTIFIC REPORTS, v. 7, NOV 22 2017. Web of Science Citations: 1.
YOUNG-S, LUIS E.; MURUGANANDAM, PAULSAMY; ADHIKARI, SADHAN K.; LONCAR, VLADIMIR; VUDRAGOVIC, DUSAN; BALAZ, ANTUN. OpenMP GNU and Intel Fortran programs for solving the time-dependent Gross-Pitaevskii equation. COMPUTER PHYSICS COMMUNICATIONS, v. 220, p. 503-506, NOV 2017. Web of Science Citations: 16.
ADHIKARI, S. K. Elastic collision and breather formation of spatiotemporal vortex light bullets in a cubic-quintic nonlinear medium. LASER PHYSICS LETTERS, v. 14, n. 6 JUN 2017. Web of Science Citations: 4.
ADHIKARI, S. K. Statics and dynamics of a self-bound matter-wave quantum ball. Physical Review A, v. 95, n. 2 FEB 9 2017. Web of Science Citations: 14.
ADHIKARI, S. K. Statics and dynamics of a self-bound dipolar matter-wave droplet. Laser Physics Letters, v. 14, n. 2 FEB 2017. Web of Science Citations: 13.
GAUTAM, SANDEEP; ADHIKARI, S. K. Vortex-bright solitons in a spin-orbit-coupled spin-1 condensate. Physical Review A, v. 95, n. 1 JAN 9 2017. Web of Science Citations: 31.
LONCAR, VLADIMIR; YOUNG-S, LUIS E.; SKRBIC, SRDJAN; MURUGANANDAM, PAULSAMY; ADHIKARI, SADHAN K.; BALAZ, ANTUN. OpenMP, OpenMP/MPI, and CUDA/MPI C programs for solving the time-dependent dipolar Gross-Pitaevskii equation. COMPUTER PHYSICS COMMUNICATIONS, v. 209, p. 190-196, DEC 2016. Web of Science Citations: 20.
ADHIKARI, S. K. Elastic collision and molecule formation of spatiotemporal light bullets in a cubic-quintic nonlinear medium. Physical Review E, v. 94, n. 3 SEP 26 2016. Web of Science Citations: 9.
ADHIKARI, S. K. Two-dimensional bright and dark-in-bright dipolar Bose-Einstein condensate solitons on a one-dimensional optical lattice. Laser Physics Letters, v. 13, n. 8 AUG 2016. Web of Science Citations: 7.
YOUNG-S., LUIS E.; VUDRAGOVIC, DUGAN; MURUGANANDAM, PAULSAMY; ADHIKARI, SADHAN K.; BALAZ, ANTUN. OpenMP Fortran and C programs for solving the time-dependent Gross-Pitaevskii equation in an anisotropic trap. COMPUTER PHYSICS COMMUNICATIONS, v. 204, p. 209-213, JUL 2016. Web of Science Citations: 34.
ADHIKARI, S. K. Stable and mobile two-dimensional dipolar ring-dark-in-bright Bose-Einstein condensate soliton. Laser Physics Letters, v. 13, n. 3 MAR 2016. Web of Science Citations: 5.
LONCAR, VLADIMIR; BALAZ, ANTUN; BOOJEVIC, ALEKSANDAR; SKRBIC, SRDJAN; MURUGANANDAM, PAULSAMY; ADHIKARI, SADHAN K. CUDA programs for solving the time-dependent dipolar Gross-Pitaevskii equation in an anisotropic trap. COMPUTER PHYSICS COMMUNICATIONS, v. 200, p. 406-410, MAR 2016. Web of Science Citations: 41.
SATARIC, BOGDAN; SLAVNIC, VLADIMIR; BELIC, ALEKSANDAR; BALAZ, ANTUN; MURUGANANDAM, PAULSAMY; ADHIKARI, SADHAN K. Hybrid OpenMP/MPI programs for solving the time-dependent Gross-Pitaevskii equation in a fully anisotropic trap. COMPUTER PHYSICS COMMUNICATIONS, v. 200, p. 411-417, MAR 2016. Web of Science Citations: 45.
GAUTAM, SANDEEP; ADHIKARI, S. K. Fractional-charge vortex in a spinor Bose-Einstein condensate. Physical Review A, v. 93, n. 1 JAN 29 2016. Web of Science Citations: 8.
ADHIKARI, S. K. Stable spatial and spatiotemporal optical soliton in the core of an optical vortex. Physical Review E, v. 92, n. 4 OCT 29 2015. Web of Science Citations: 14.
KUMAR, R. KISHOR; YOUNG-S, LUIS E.; VUDRAGOVIC, DUSAN; BALAZ, ANTUN; MURUGANANDAM, PAULSAMY; ADHIKARI, S. K. Fortran and C programs for the time-dependent dipolar Gross-Pitaevskii equation in an anisotropic trap. COMPUTER PHYSICS COMMUNICATIONS, v. 195, p. 117-128, OCT 2015. Web of Science Citations: 64.
GAUTAM, SANDEEP; ADHIKARI, S. K. Analytic models for the density of a ground-state spinor condensate. Physical Review A, v. 92, n. 2 AUG 12 2015. Web of Science Citations: 5.
GAUTAM, SANDEEP; ADHIKARI, S. K. Vector solitons in a spin-orbit-coupled spin-2 Bose-Einstein condensate. Physical Review A, v. 91, n. 6 JUN 15 2015. Web of Science Citations: 21.
GAUTAM, SANDEEP; ADHIKARI, S. K. Mobile vector soliton in a spin-orbit coupled spin-1 condensate. Laser Physics Letters, v. 12, n. 4 APR 2015. Web of Science Citations: 19.
GAUTAM, SANDEEP; ADHIKARI, S. K. Spontaneous symmetry breaking in a spin-orbit-coupled f=2 spinor condensate. Physical Review A, v. 91, n. 1 JAN 23 2015. Web of Science Citations: 14.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.