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- Eötvös Loránd UniversityHU320 papers
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4 papers · 2 filters
Mixed-order phase transition of the contact process near multiple junctions
R. Juhász, F. Iglói
We have studied the phase transition of the contact process near a multiple junction of semi-infinite chains by Monte Carlo simulations. As opposed to the continuous transition…
Entanglement entropy of the quantum Potts chain
Péter Lajkó, Ferenc Iglói
The entanglement entropy, , is an indicator of quantum correlations in the ground state of a many body quantum system. At a second-order quantum phase-transition point in…
Phase-transitions of the random bond Potts chain with long-range interactions
Jean-Christian Anglès d'Auriac, Ferenc Iglói
We study phase-transitions of the ferromagnetic -state Potts chain with random nearest-neighbour couplings having a variance and with homogeneous long-range interactions,…
Long-range random transverse-field Ising model in three dimensions
István A. Kovács, Róbert Juhász, Ferenc Iglói
We consider the random transverse-field Ising model in dimensions with long-range ferromagnetic interactions which decay as a power with the distance. Using a variant…