40 citations · 73 across the 5 of their papers we have counts for
5 papers
Effective-interaction approach to the many-boson problem
J. Christensson, C. Forssén, S. Åberg +1
We show that the convergence behavior of the many-body numerical diagonalization scheme for strongly interacting bosons in a trap can be significantly improved by the Lee-Suzuki me…
Universality of Many-Body States in Rotating Bose and Fermi Systems
M. Borgh, M. Koskinen, J. Christensson +2
We propose a universal transformation from a many-boson state to a corresponding many-fermion state in the lowest Landau level approximation of rotating many-body systems, inspired…
Metastability of persistent currents in trapped gases of atoms
K. Karkkainen, J. Christensson, G. Reinisch +2
We examine the conditions that give rise to metastable, persistent currents in a trapped Bose-Einstein condensate. A necessary condition for the stability of persistent currents is…
Manipulating the rotational properties of a two-component Bose gas
J. Christensson, S. Bargi, K. Karkkainen +4
A rotating, two-component Bose-Einstein condensate is shown to exhibit vortices of multiple quantization, which are possible due to the interatomic interactions between the two spe…
Mixtures of Bose gases under rotation
S. Bargi, J. Christensson, G. M. Kavoulakis +1
We examine the rotational properties of a mixture of two Bose gases. Considering the limit of weak interactions between the atoms, we investigate the behavior of the system under a…