144 citations · 274 across the 4 of their papers we have counts for
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cond-mat1998★ 105 cited
Finite Temperature Perturbation Theory for a Spatially Inhomogeneous Bose-condensed Gas
P. O. Fedichev, G. V. Shlyapnikov
We develop a finite temperature perturbation theory (beyond the mean field) for a Bose-condensed gas and calculate temperature-dependent damping rates and energy shifts for Bogolyu…
cond-mat1997★ 144 cited
Damping of low-energy excitations of a trapped Bose condensate at finite temperatures
P. O. Fedichev, G. V. Shlyapnikov, J. T. M. Walraven
We present the theory of damping of low-energy excitations of a trapped Bose condensate at finite temperatures, where the damping is provided by the interaction of these excitation…