176 citations · 1.9k across the 82 of their papers we have counts for
5 papers · 1 filter
Finite-Size Scaling of the Level Compressibility at the Anderson Transition
M. L. Ndawana, R. A. Römer, M. Schreiber
We compute the number level variance and the level compressibility from high precision data for the Anderson model of localization and show that they can be used in ord…
Localization properties of two interacting particles in a quasi-periodic potential with a metal-insulator transition
Andrzej Eilmes, Rudolf A. Roemer, Michael Schreiber
We study the influence of many-particle interactions on a metal-insulator transition. We consider the two-interacting-particle problem for onsite interacting particles on a one-dim…
A supersymmetric U_{q}[osp(2|2)]-extended Hubbard model with boundary fields
X. -W. Guan, A. Foerster, U. Grimm +2
A strongly correlated electron system associated with the quantum superalgebra is studied in the framework of the quantum inverse scattering method. By solving…
Integer quantum Hall transition in the presence of a long-range-correlated quenched disorder
P. Cain, M. E. Raikh, R. A. Roemer +1
We theoretically study the effect of long-ranged inhomogeneities on the critical properties of the integer quantum Hall transition. For this purpose we employ the real-space renorm…
Interacting particles at a metal-insulator transition
Cosima Schuster, Rudolf A. Roemer, Michael Schreiber
We study the influence of many-particle interaction in a system which, in the single particle case, exhibits a metal-insulator transition induced by a finite amount of onsite ponte…