Abstract
We plan to continue investigating the many facets of the dynamics of Bose-Einstein condensates, exotic nuclei, and develop and apply the theory of quantum chaos. We also plan to study the topic of quantum turbulence. (AU)
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Arnaldo Gammal
CV Lattes
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Universidade de São Paulo (USP). Instituto de Física (IF) (Institutional affiliation for the last research proposal) Birthplace: Brazil
graduated at Engenharia Eletrônica from Instituto Tecnológico de Aeronáutica (1986), master's in Physics at Universidade de São Paulo (1992) and Ph.D. at Physics at Universidade de São Paulo (1997). Presently is associate Professor at University of Sao Paulo. Has experience in Physics, acting on the following subjects: Bose-Einstein condensates, solitons, partial differential equations, coherence in atomic medium and matter-waves . (Source: Lattes Curriculum)
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Research grants
- Quench dynamics of interacting bosons in 1D optical lattice, AV.EXT
Abstract
We propose to study the ground state properties the quench dynamics of the interacting bosons in optical lattice both for the deep and shallow. The usage of optical lattice of different height will allow us to study the whole regime of a single condensate to fragmented condensate. Moreover we shall demonstrate the fundamental correlation between the production of entropy, build up of corr…
- Plane wave and stripe phases of Rasbha spin-orbit coupled Bose-Einstein condensates with Rabi coupling, AV.EXT
Abstract
We propose to study the ground state properties of harmonically trapped pseudo spin-1/2Bose-Einstein condensates in quasi-two dimensional setting with Rashba spin-orbit coupling and Rabi coupling from the numerical solutions of coupled Gross-Pitaevskii equations and to analyse the stability using Bogoliubov theory. In particular, we wish to investigate the role of the parameters, namely, …
- Dynamics of many-body systems III, AP.TEM
Abstract
In this project we plan to continue our investigation of the collective and chaotic behaviors of many-body systems, be them the atomic nucleus, Bose-Einstein condensates of atoms or molecules or meso- and nanoscopic systems. Our project is a natural continuation of our previos two thematic projects which were quite successful. (AU)
(Only some records are available in English at this moment)
Scholarships in Brazil
- Many-body properties of Bose-Einstein condensates from multi configurational time-dependent Hartree method, BP.DR
Abstract
We are going to study Bose-Einstein Condensates (BEC) beyond Gross-Pitaevskii (GP) mean-field approach, pursuing novel methods that take in account the depletion of atoms from the same quantum state, absent in GP mean-field. These new methods are already being studied in what is called Multi Configurational Time-Dependent Hartree (MCTDH) whose can be used in the limit of stronger interact…
- Excitations of dipolar Bose-Einstein condensates, BP.PD
Abstract
In the present project we wish to investigate the excitations in dipolar Bose-Einstein condensates (BECs). In dipolar BECs, the atomic interaction has a long-range dipolar counterpart in addition to the usual contact interaction. The resulting Gross-Pitaevskii (GP) equation in this case is a partial integro-differential equation and special algorithms are required for its numerical solut…
- Bose-Einstein Condensate in a Hexagonal Optical Lattice, BP.DR
Abstract
Experiments of expansion of Bose-Einstein condensades in an optical lattices has been made by several research groups, showing the phase transition from superfluid (SF) to Mott-insulator (MI). This ph.D. project aims to describe how occurs the SF-MI transition using numerical methods of Quantum Monte-Carlo applied to the Bose-Hubbard model in a hexagonal optical lattice. Afterward we will…
(Only some records are available in English at this moment)
Scholarships abroad
- Phase diagram of mixtures of species in hexagonal optical lattices, BE.EP.DR
Abstract
Expansion experiments with Bose-Einstein condensates in optical lattices has been carrying out by several research groups, showing the phase transition from superfluid (SF) to Mott-insulator (MI). This sandwich Ph.D. project aims to describe the phase diagram of this systems when considering mixtures of atomic species in optical lattice with hexagonal symmetry using numerical methods of Q…
- Nonlinear interference of matter waves in supersonic BEC flows through non-uniform channels, BE.EP.PD
Abstract
The interference pattern generated by the interaction of two 1D rarefaction waves (RWs) was studied in [1]. However, only numerical solutions was presented. This problem can be solved analytically using the methods from [2] where the 1D dispersive shock wave (DSW) - RW interaction has analytical results. We propose a 2D analogue of this problem providing analytical and numerical results. …
- Bose Einstein condensates: high density vortex formation, BE.PQ
Abstract
We are going to ivestigate the vortex formation at high densities using the slave-boson approach. This result in an integro-differential equation that reduces to the Gross-Pitaevkii equation at dilute regime. High density effects shall have effect at the critical angular velocity for vortex formation. This project was initiated with prof. Klaus Ziegler (Augsburg-Alemnha) during the ICAP20…
Total / Available in English
| 1 / 1 | Ongoing research grants |
| 8 / 6 | Completed research grants |
| 9 / 7 | Completed scholarships in Brazil |
| 5 / 3 | Completed scholarships abroad |
| 23 / 17 | All research grants and scholarships |
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