51 citations · 144 across the 8 of their papers we have counts for
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Griffiths-McCoy singularities in random quantum spin chains: Exact results
Ferenc Iglói, István A. Kovács
We consider random quantum (tight-binding, XX and Ising) spin chains in the off-critical region and study their Griffiths-McCoy singularities. These are obtained from the density o…
Disorder induced cross-over effects at quantum critical points
Enrico Carlon, Péter Lajko, Ferenc Iglói
Critical properties of quantum spin chains with varying degrees of disorder are studied at zero temperature by analytical and extensive density matrix renormalization methods. Gene…
Correlation length-exponent relation for the two-dimensional random Ising model
Peter Lajko, Ferenc Igloi
We consider the two-dimensional (2d) random Ising model on a diagonal strip of the square lattice, where the bonds take two values, , with equal probability. Using an iter…
Surface critical behavior of two-dimensional dilute Ising models
W. Selke, F. Szalma, P. Lajko +1
Ising models with nearest-neighbor ferromagnetic random couplings on a square lattice with a (1,1) surface are studied, using Monte Carlo techniques and star-tiangle transformation…