436 citations · 1.2k across the 33 of their papers we have counts for
33 papers
Bose-Einstein-condensed systems in random potentials
V. I. Yukalov, R. Graham
The properties of systems with Bose-Einstein condensate in external time-independent random potentials are investigated in the frame of a self-consistent stochastic mean-field appr…
Bose Condensed Gas in Strong Disorder Potential With Arbitrary Correlation Length
Patrick Navez, Axel Pelster, Robert Graham
We study the properties of a dilute Bose condensed gas at zero temperature in the presence of a strong random potential with arbitrary correlation length. Starting from the underly…
Disorder-Induced Shift of Condensation Temperature for Dilute Trapped Bose Gases
Matthias Timmer, Axel Pelster, Robert Graham
We determine the leading shift of the Bose-Einstein condensation temperature for an ultracold dilute atomic gas in a harmonic trap due to weak disorder by treating both a Gaussian…
Subsonic critical velocity at finite temperature
Patrick Navez, Robert Graham
Based on the dielectric formalism in the generalised random phase approximation, we generalise the description of a Bose condensed gas to allow for a relative velocity between the…
Order via Nonlinearity in Randomly Confined Bose Gases
Robert Graham, Axel Pelster
A Hartree-Fock mean-field theory of a weakly interacting Bose-gas in a quenched white noise disorder potential is presented. A direct continuous transition from the normal gas to a…
Bose-Einstein condensate of kicked rotators with time-dependent interaction
B. Mieck, R. Graham
A modification of the quantum kicked rotator is suggested with a time-dependent delta-kicked interaction parameter which can be realized by a pulsed turn-on of a Feshbach resonance…