47 citations · 402 across the 38 of their papers we have counts for
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cond-mat.quant-gas2011★ 1 cited
Quantum phase transitions in optical lattices beyond Bogoliubov approximation
H. Kleinert, Z. Narzikulov, Abdulla Rakhimov
We study the quantum phase transition in optical lattices using ordinary Bose Hubbard Hamiltonian within two loop approximation in variational perturbation theory. We have shown th…
cond-mat.quant-gas2011★ 12 cited
Quasiequilibrium Mixture of Itinerant and Localized Bose Atoms in Optical Lattice
V. I. Yukalov, A. Rakhimov, S. Mardonov
Conditions are studied under which there can exist a quasiequilibrium mixture of itinerant and localized bosonic atoms in an optical lattice, even at zero temperature and at intege…