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9 papers · 1 filter
Generation of multipole moments by external field in Born-Infeld non-linear electrodynamics
Dariusz Chruscinski, Jerzy Kijowski
The mechanism for the generation of multipole moments due to an external field is presented for the Born-Infeld charged particle. The 'polarizability coefficient' for arbitrary l-p…
Generation of a dipole moment by external field in Born-Infeld non-linear electrodynamics
Dariusz Chruscinski, Jerzy Kijowski
The mechanism for the generation of a dipole moment due to an external field is presented for the Born-Infeld charged particle. The 'polarizability coefficient' is calculated: it i…
Unconstrained Hamiltonian formulation of General Relativity with thermo-elastic sources
Jerzy Kijowski, Giulio Magli
A new formulation of the Hamiltonian dynamics of the gravitational field interacting with(non-dissipative) thermo-elastic matter is discussed. It is based on a gauge condition whic…
Wave packet dynamics with Bose-Einstein condensates
R. Dum, A. Sanpera, K. -A. Suominen +4
We study wave packet dynamics of a Bose condensate in a periodically shaken trap. Dichotomy, that is, dynamic splitting of the condensate, and dynamic stabilization are analyzed in…
Possible long time tails in the current-current correlation function for the two dimensional electron gas in random magnetic field
A. Lusakowski, L. A. Turski
We consider two-dimensional degenerate electron gas in the presence of perpendicular random magnetic field. The magnetic field disorder which is assumed to be gaussian is character…
Lagrangian and Hamiltonian formalism for discontinuous fluid and gravitational field
P. Hajicek, J. Kijowski
The barotropic ideal fluid with step and delta-function discontinuities coupled to Einstein's gravity is studied. The discontinuities represent star surfaces and thin shells; only…