40 citations · 173 across the 11 of their papers we have counts for
4 papers · 1 filter
Cold Fermionic Atoms in Two-Dimensional Traps -- Pairing versus Hund's Rule
M. Rontani, J. R. Armstrong, Y. Yu +2
The microscopic properties of few interacting cold fermionic atoms confined in a two-dimensional (2D) harmonic trap are studied by numerical diagonalization. For repulsive interact…
Superscars in billiards -- A model for doorway states in quantum spectra
S. Åberg, T. Guhr, M. Miski-Oglu +1
In a unifying way, the doorway mechanism explains spectral properties in a rich variety of open mesoscopic quantum systems, ranging from atoms to nuclei. A distinct state and a bac…
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…
Mesoscopic Fluctuations of the Pairing Gap
S. Åberg, H. Olofsson, P. Leboeuf
A description of mesoscopic fluctuations of the pairing gap in finite-sized quantum systems based on periodic orbit theory is presented. The size of the fluctuations are found to d…