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Debye potentials adapted to cylindrical coordinates
(Revista Mexicana de Física, 2009)
Soluções exatas das equações de Einstein com simetria axialExact solutions to the Einstein equations with axial symmetry
(Sociedade Brasileira de Física, 2005)
An ambiguous statement called the "tetrad postulate" and the correct field equations satisfied by the tetrad fields
(World Scientific Publ Co Pte LtdSingaporeSingapura, 2005)
Chaotic oscillation in an attractive Bose-Einstein condensate under an impulsive force
(2002-04-01)
The chaotic oscillation in an attractive Bose-Einstein condensate (BEC) under an impulsive force was discussed using mean-field Gross-Pitaevskii (GP) equation. It was found that sustained chaotic oscillation resulted in a ...
Griffiths variational multisymplectic formulation for Lovelock gravity
(Springer/Plenum Publishers, 2020-08-24)
This work is mainly devoted to constructing a multisymplectic description of Lovelock’s gravity, which is an extension of General Relativity. We establish the Griffiths variational problem for the Lovelock Lagrangian, ...
Mean-field description of collapsing and exploding Bose-Einstein condensates
(2002-07-01)
Numerical simulations based on the time-dependent mean-field Gross-Pitaevskii equation was performed to explain the dynamics of collapsing and exploding Bose-Einstein condensates (BEC) of 85Rb atoms. The atomic interaction ...
Mean-field description of collapsing and exploding Bose-Einstein condensates
(2002-07-01)
Numerical simulations based on the time-dependent mean-field Gross-Pitaevskii equation was performed to explain the dynamics of collapsing and exploding Bose-Einstein condensates (BEC) of 85Rb atoms. The atomic interaction ...
Controlling collapse in Bose-Einstein condensates by temporal modulation of the scattering length
(2003-01-01)
A study was conducted on the dynamics of 2D and 3D Bose-Einstein condensates in the case when the scattering length in the Gross-Pitaevskii (GP) equation which contains constant (dc) and time-variable (ac) parts. Using the ...