231 citations · 1.1k across the 16 of their papers we have counts for
7 papers · 1 filter
The response of Bose-Einstein condensates to external perturbations at finite temperature
S. A. Morgan
We present a theory of the linear response of a Bose-condensed gas to external perturbations at finite temperature. The theory developed here is the basis of a recent quantitative…
Quantitative test of thermal field theory for Bose-Einstein condensates
S. A. Morgan, M. Rusch, D. A. W. Hutchinson +1
We present numerical results from a full second order quantum field theory of Bose-Einstein condensates applied to the 1997 JILA experiment [D. S. Jin et al., Phys. Rev. Lett. Vol.…
The Gross-Pitaevskii equation and higher order theories in one-dimensional Bose gases
M. D. Lee, S. A. Morgan, K. Burnett
We investigate the properties of the one-dimensional Bose gas at zero temperature, for which exact results exist for some model systems. We treat the interactions between particles…
Solutions of the Gross-Pitaevskii equation in two dimensions
M. D. Lee, S. A. Morgan
In two dimensions the Gross-Pitaevskii equation for a cold, dilute gas of bosons has an energy dependent coupling parameter describing particle interactions. We present numerical s…
Energy dependent scattering and the Gross-Pitaevskii Equation in two dimensional Bose-Einstein condensates
M. D. Lee, S. A. Morgan, M. J. Davis +1
We consider many-body effects on particle scattering in one, two and three dimensional Bose gases. We show that at zero temperature these effects can be modelled by the simpler two…
Simulations of thermal Bose fields in the classical limit
M. J. Davis, S. A. Morgan, K. Burnett
We demonstrate that the time-dependent projected Gross-Pitaevskii equation derived earlier [Davis, et al., J. Phys. B 34, 4487 (2001)] can represent the highly occupied modes of a…