176 citations · 1.9k across the 82 of their papers we have counts for
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Level-Spacing Distributions of Planar Quasiperiodic Tight-Binding Models
J. X. Zhong, U. Grimm, R. A. Roemer +1
We study the statistical properties of energy spectra of two-dimensional quasiperiodic tight-binding models. We demonstrate that the nearest-neighbor level spacing distributions of…
The two-dimensional Anderson model of localization with random hopping
Andrzej Eilmes, Rudolf A. Roemer, Michael Schreiber
We examine the localization properties of the 2D Anderson Hamiltonian with off-diagonal disorder. Investigating the behavior of the participation numbers of eigenstates as well as…
The Mott-Anderson transition in the disordered one-dimensional Hubbard model
Ramesh V. Pai, Alexander Punnoose, Rudolf A. Römer
We use the density matrix renormalization group to study the quantum transitions that occur in the half-filled one-dimensional fermionic Hubbard model with onsite potential disorde…
The enhancement of the localization length for two interacting particles is vanishingly small in transfer-matrix calculations
Rudolf A. Roemer, Michael Schreiber
In response to a recent Comment by Frahm et al. regarding our Letter [Phys. Rev. Lett. {\bf 78}, 515 (1997)], we point out that no ``consistent picture'' exists for the enhancement…
Two interacting particles in a random potential: The random matrix model revisited
Thomas Vojta, Rudolf A. Roemer, Michael Schreiber
We reinvestigate the validity of mapping the problem of two onsite interacting particles in a random potential onto an effective random matrix model. To this end we first study num…