132 citations · 1.4k across the 46 of their papers we have counts for
Showing 1999Show all
3 papers · 1 filter
cond-mat.dis-nn1999★ 1 cited
Critical exponents of random XX and XY chains: Exact results via random walks
H. Rieger, R. Juhasz, F. Igloi
We study random XY and (dimerized) XX spin-1/2 quantum spin chains at their quantum phase transition driven by the anisotropy and dimerization, respectively. Using exact expression…
cond-mat.dis-nn1999★ 28 cited
Random quantum magnets with long-range correlated disorder: Enhancement of critical and Griffiths-McCoy singularities
H. Rieger, F. Igloi
We study the effect of spatial correlations in the quenched disorder on random quantum magnets at and near a quantum critical point. In the random transverse field Ising systems di…
cond-mat.stat-mech1999★ 8 cited
Transverse-field Ising spin chain with inhomogeneous disorder
Dragi Karevski, Róbert Juhász, Loïc Turban +1
We consider the critical and off-critical properties at the boundary of the random transverse-field Ising spin chain when the distribution of the couplings and/or transverse fields…