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Your search keyword '"Burlak, G. N."' showing total 14 results
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14 results on '"Burlak, G. N."'

1. The solitons redistribution in Bose-Einstein condensate in quasiperiodic optical lattice

Author

Burlak, G. N. and Klimov, A. B.

Subjects
Nonlinear Sciences - Pattern Formation and Solitons
Abstract

We numerically study the dynamical excitations in Bose-Einstein condensate (BEC) placed in periodic and quasi-periodic 2D optical lattice (OL). In case of the repulsive mean-field interaction the BEC quantum tunnelling leads to a progressive soliton's splitting and generating of secondary solitons, which migrate to closest trapping potential minima. A nontrivial soliton dynamics appears when a series of pi-pulses (phase kicks) are applied to the optical lattice. Such sudden perturbation produces a dynamic redistribution of the secondary solitons, leading to a formation of an artificial solitonic superlattice. Different geometries of OL are analyzed., Comment: 16 pages, 6 figures

Published
2007
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11. TWO-ATOM ENTANGLEMENT ASSISTED BY AN EXTERNAL PULSED PUMPING.

Author

Burlak, G. N. and Klimov, A. B.

Subjects
*ATOMS, *FLUCTUATIONS (Physics), *OSCILLATION theory of differential equations, *CYCLES, *COUPLED mode theory (Wave-motion), *PHYSICAL & theoretical chemistry
Abstract

We have studied the effect of external pumping on the dynamics of the entanglement of two two-level atoms interacting with a cavity mode. It is shown that a sequence of well detuned pulses of the classical field leads to the dynamical formation of an extended plateau-like zone of high level atomic entanglement with the duration much longer than the period of Rabi oscillations. The dissipation reduces the amplitude of the entanglement, however practically does not change the width of such zones. [ABSTRACT FROM AUTHOR]

Published
2006
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