209 citations · 5.6k across the 322 of their papers we have counts for
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Self-Consistent Theory of Bose-Condensed Systems
V. I. Yukalov
In the theory of Bose-condensed systems, there exists the well known problem, the Hohenberg-Martin dilemma of conserving versus gapless approximations. This dilemma is analysed and…
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…
Nonequilibrium Bose systems and nonground-state Bose-Einstein condensates
V. I. Yukalov
The theory of resonant generation of nonground-state Bose-Einstein condensates is extended to Bose-condensed systems at finite temperature. The generalization is based on the notio…
Gapless Hartree-Fock-Bogoliubov Approximation for Bose Gases
V. I. Yukalov, H. Kleinert
A dilute Bose system with Bose-Einstein condensate is considered. It is shown that the Hartree-Fock-Bogolubov approximation can be made both conserving as well as gapless. This is…
Nonequivalent operator representations for Bose-condensed systems
V. I. Yukalov
The necessity of accurately taking into account the existence of nonequivalent operator representations, associated with canonical transformations, is discussed. It is demonstrated…
Self-similar power transforms in extrapolation problems
S. Gluzman, V. I. Yukalov
A method is suggested allowing for the improvement of accuracy of self-similar factor and root approximants, constructed from asymptotic series. The method is based on performing a…