47 citations · 218 across the 17 of their papers we have counts for
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Characteristic quantities for nonequilibrium Bose systems
V. I. Yukalov, A. N. Novikov, E. P. Yukalova +1
The paper discusses what characteristic quantities could quantify nonequilibrium states of Bose systems. Among such quantities, the following are considered: effective temperature,…
Characterization of nonequilibrium states of trapped Bose-Einstein condensates
V. I. Yukalov, A. N. Novikov, V. S. Bagnato
Generation of different nonequilibrium states in trapped Bose-Einstein condensates is studied by numerically solving nonlinear Schrodinger equation. Inducing nonequilibrium states…
Vortex rings and vortex ring solitons in shaken Bose-Einstein condensate
V. I. Yukalov, A. N. Novikov, E. P. Yukalova +1
In a shaken Bose-Einstein condensate, confined in a vibrating trap, there can appear different nonlinear coherent modes. Here we concentrate on two types of such coherent modes, vo…
Strongly nonequilibrium Bose-condensed atomic systems
V. I. Yukalov, A. N. Novikov, V. S. Bagnato
A trapped Bose-Einstein condensate, being strongly perturbed, exhibits several spatial structures. First, there appear quantum vortices. Increasing the amount of the injected energ…
Realization of inverse Kibble-Zurek scenario with trapped Bose gases
V. I. Yukalov, A. N. Novikov, V. S. Bagnato
We show that there exists the inverse Kibble-Zurek scenario, when we start with an equilibrium system with broken symmetry and, by imposing perturbations, transform it to a strongl…
Transport of the repulsive Bose-Einstein condensate in a double-well trap: interaction impact and relation to Josephson effect
V. O. Nesterenko, A. N. Novikov, E. Suraud
Two aspects of the transport of the repulsive Bose-Einstein condensate (BEC) in a double-well trap are inspected: impact of the interatomic interaction and analogy to the Josephson…
Formation of granular structures in trapped Bose-Einstein condensates under oscillatory excitations
V. I. Yukalov, A. N. Novikov, V. S. Bagnato
We present experimental observations and numerical simulations of nonequilibrium spatial structures in a trapped Bose-Einstein condensate subject to oscillatory perturbations. In e…
Inverse population transfer of the repulsive Bose-Einstein condensate in a double-well trap: strong interaction-induced support
V. O. Nesterenko, A. N. Novikov, E. Suraud
An inverse population transfer of the repulsive Bose-Einstein condensate (BEC) in a weakly bound double-well trap is explored within the 3D time-dependent Gross-Pitaevskii equation…
Strong-coupling dynamics of Bose-Einstein condensate in a double-well trap
V. O. Nesterenko, A. N. Novikov, E. Suraud
Dynamics of the repulsive Bose-Einstein condensate (BEC) in a double-well trap is explored within the 3D time-dependent Gross-Pitaevskii equation. The model avoids numerous common…
The Adiabatic Transport of Bose-Einstein Condensates in a Double-Well Trap: Case a Small Nonlinearity
V. O. Nesterenko, A. N. Novikov, E. Suraud
A complete adiabatic transport of Bose-Einstein condensate in a double-well trap is investigated within the Landau-Zener (LZ) and Gaussian Landau-Zener (GLZ) schemes for the case o…
Variational approach to the ground state of an impurity in Bose-Einstein condensate
Alexey Novikov, Mikhail Ovchinnikov
In this paper we consider the effect of self-localization of a quantum impurity in Bose-Einstein condensate. Space correlation function of the impurity is evaluated with the help o…
Adiabatic transport of Bose-Einstein condensate in double-well trap
V. O. Nesterenko, A. N. Novikov, A. Yu. Cherny +2
A complete irreversible adiabatic transport of Bose-Einstein condensate (BEC) in a double-well trap is investigated within the mean field approximation. The transfer is driven by t…