349 citations · 2.4k across the 77 of their papers we have counts for
6 papers · 1 filter
Quantum multimode model of elastic scattering from Bose Einstein condensates
P. Zin, J. Chwedenczuk, A. Perez +2
Mean field approximation treats only coherent aspects of the evolution of a Bose Einstein condensate. However, in many experiments some atoms scatter out of the condensate. We stud…
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…
Classical fields approximation for cold weakly interacting bosons without free parameters
Lukasz Zawitkowski, Miroslaw Brewczyk, Mariusz Gajda +1
Classical fields approximation to cold weakly interacting bosons allows for a unified treatment of condensed and uncondensed parts of the system. Until now, however, the quantitati…
Soliton trains in Bose-Fermi mixtures
T. Karpiuk, M. Brewczyk, S. Ospelkaus-Schwarzer +3
We theoretically consider the formation of bright solitons in a mixture of Bose and Fermi degenerate gases. While we assume the forces between atoms in a pure Bose component to be…
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…
Elastic scattering losses in the four-wave mixing of Bose Einstein Condensates
J. Chwedenczuk, M. Trippenbach, K. Rzazewski
We introduce a classical stochastic field method that accounts for the quantum fluctuations responsible for spontaneous initiation of various atom optics processes. We assume a del…