4 papers
Nonequilibrium Processes in Non-Hamiltonian Statistical Ensembles
Alexander V. Zhukov, Jianshu Cao
A nonequilibrium statistical operator method is developed for ensembles of particles obeying non-Hamiltonian equations of motion in classical phase space. The main consequences of…
Local invariants in effective hydrodynamics of trapped dilute-gas Bose-Einstein condensates
Alexander V. Zhukov
In the framework of mean-field approximation the dynamics of Bose-Einstein condensates can be described by the hydrodynamic-like equations. These equations are analyzed here with a…
Microscopic Theory for Emission of Elementary Excitations into He II from a Heated Solid
Alexander V. Zhukov
I develop here the microscopic quantum theory for description of creation of phonons and rotons in superfluid helium by a solid heater. Starting with correct transfer Hamiltonian d…
Internal Spatial Oscillations in a Single Trapped Bose--Einstein Condensate
Alexander V. Zhukov
I predict the existence of internal spatial currents in a {\it single} macroscopic quantum system, namely in trapped dilute-gas at sufficiently low temperatures, when a Bose-Einste…