39 citations · 130 across the 5 of their papers we have counts for
5 papers
Correlation functions of cold bosons in an optical lattice
Radka Bach, Kazimierz Rzazewski
We investigate the experiment of collapses and revivals of matter wave field in more detail. To this end we calculate the lowest-order correlation functions of the Bose field. We c…
Correlations in atomic systems: Diagnosing coherent superpositions
Radka Bach, Kazimierz Rzazewski
While investigating quantum correlations in atomic systems, we note that single measurements contain information about these correlations. Using a simple model of measurement -- an…
Quantum Mechanical Cumulant Dynamics near Stable Periodic Orbits in Phase Space: Application to the classical-like dynamics of quantum accelerator modes
R. Bach, K. Burnett, M. B. d'Arcy +1
We formulate a general method for the study of semiclassical-like dynamics in stable regions of a mixed phase-space, in order to theoretically study the dynamics of quantum acceler…
Spontaneous emission of atoms via collisions of Bose-Einstein condensates
Radka Bach, Marek Trippenbach, Kazimierz Rzazewski
The widely used Gross-Pitaevskii equation treats only coherent aspects of the evolution of a Bose-Einstein condensate. However, inevitably some atoms scatter out of the condensate.…
Finite temperature oscillations of a Bose-Einstein condensate in a two-gas model
R. Bach, M. Brewczyk, K. Rzazewski
The temperature dependence of the frequencies of a Bose-Einstein condensate obtained in experiment has not been fully understood theoretically. In this paper we present a simplifie…