3 papers
cond-mat.quant-gas2025
Self-consistent Hartree-Fock-Bogoliubov approach for bosons: self-eliminating divergence and pure pair condensate
M. Bulakhov, A. S. Peletminskii
We investigate the thermodynamic properties of an interacting Bose gas with a condensate within the energy-functional formulation of the Hartree-Fock-Bogoliubov (HFB) approach. For…
cond-mat.stat-mech2025
Method of canonical transformations in the theory of quantum gases interacting with radiation
M. S. Bulakhov, A. S. Peletminskii, P. P. Kostrobij +2
An approach to the theoretical study of effects and phenomena in quantum gases interacting with radiation is proposed. The approach is based on a modification of the canonical tran…
cond-mat.quant-gas2025
General collisionless kinetic approach to studying excitations in arbitrary-spin quantum atomic gases
M. Bulakhov, A. S. Peletminskii, Yu. V. Slyusarenko
We develop a general kinetic approach to studying high-frequency collective excitations in arbitrary-spin quantum gases. To this end, we formulate a many-body Hamiltonian that incl…