114 citations · 450 across the 25 of their papers we have counts for
3 papers · 1 filter
Enhanced rare region effects in the contact process with long-range correlated disorder
Ahmed K. Ibrahim, Hatem Barghathi, Thomas Vojta
We investigate the nonequilibrium phase transition in the disordered contact process in the presence of long-range spatial disorder correlations. These correlations greatly increas…
Strong-randomness phenomena in quantum Ashkin-Teller models
Hatem Barghathi, Fawaz Hrahsheh, José A. Hoyos +2
The -color quantum Ashkin-Teller spin chain is a prototypical model for the study of strong-randomness phenomena at first-order and continuous quantum phase transitions. In this…
Phase Transitions on Random Lattices: How Random is Topological Disorder?
Hatem Barghathi, Thomas Vojta
We study the effects of topological (connectivity) disorder on phase transitions. We identify a broad class of random lattices whose disorder fluctuations decay much faster with in…