5 citations · 5 across the 3 of their papers we have counts for
4 papers
Bragg spectroscopy of an accelerating condensate with solitary-wave behaviour
K J Challis, R J Ballagh
We present a theoretical treatment of Bragg spectroscopy of an accelerating condensate in a solitary-wave state. Our treatment is based on the Gross-Pitaevskii equation with an opt…
Solitary-wave description of condensate micro-motion in a time-averaged orbiting potential trap
K. J. Challis, R. J. Ballagh, C. W. Gardiner
We present a detailed theoretical analysis of micro-motion in a time-averaged orbiting potential trap. Our treatment is based on the Gross-Pitaevskii equation, with the full time d…
Topological Atom Laser
P. Blair Blakie, Robert J. Ballagh, Charles W. Clark
We demonstrate how a topological atom laser can be realized by output coupling a trapped vortex state with a Raman scattering process. We find a linearized analytic solution from w…
Role of quasiparticles in the growth of a trapped Bose-Einstein condensate
C. W. Gardiner, M. D. Lee, R. J. Ballagh +2
A major extension of the model of condensate growth introduced by us is made to take account of the evolution of the occupations of lower trap levels (quasiparticles) by scattering…