130 citations · 666 across the 21 of their papers we have counts for
21 papers
Magnetism of quantum dot clusters: A Hubbard model study
J. -P. Nikkarila, M. Koskinen, M. Manninen
Magnetic properties of two and three-dimensional clusters of quantum dots are studied with exact diagonalization of a generalized Hubbard model. We study the weak coupling limit, w…
Magnetic phases of one-dimensional lattices with 2 to 4 fermions per site
J. -P. Nikkarila, M. Koskinen, S. M. Reimann +1
We study the spectral and magnetic properties of one-dimensional lattices filled with 2 to 4 fermions (with spin 1/2) per lattice site. We use a generalized Hubbard model that take…
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…
Spectral properties of rotating electrons in quantum dots and their relation to quantum Hall liquids
M. Koskinen, S. M. Reimann, J. -P. Nikkarila +1
The exact diagonalization technique is used to study many-particle properties of interacting electrons with spin, confined in a two-dimensional harmonic potential. The single-parti…
Vortex localization in rotating clouds of bosons and fermions
S. M. Reimann, M. Koskinen, Y. Yu +1
Finite quantal systems at high angular momenta may exhibit vortex formation and localization. These phenomena occur independent of the statistics of the repulsively interacting par…
Rotating quantum liquids crystallize
S. M. Reimann, M. Koskinen, Y. Yu +1
Small crystallites form when finite quantal systems are set highly rotating. This crystallization is independent of the statistics of the particles, and occurs for both trapped bos…