49 citations · 99 across the 5 of their papers we have counts for
5 papers
Mixed-order transition in the antiferromagnetic quantum Ising chain in a field
Péter Lajkó, Ferenc Iglói
The antiferromagnetic quantum Ising chain has a quantum critical point which belongs to the universality class of the transverse Ising model (TIM). When a longitudinal field ()…
Reentrant Random Quantum Ising Antiferromagnet
Péter Lajkó, Jean-Christian Anglès d'Auriac, Heiko Rieger +1
We consider the quantum Ising chain with uniformly distributed random antiferromagnetic couplings and uniformly distributed random transverse fields ($Γ_0 \le Γ…
Disorder-induced phases in the S=1 antiferromagnetic Heisenberg chain
Péter Lajkó, Enrico Carlon, Heiko Rieger +1
We use extensive density matrix renormalization group (DMRG) calculations to explore the phase diagram of the random S=1 antiferromagnetic Heisenberg chain with a power-law distrib…
Disorder Induced Phases in Higher Spin Antiferromagnetic Heisenberg Chains
Enrico Carlon, Péter Lajkó, Heiko Rieger +1
Extensive DMRG calculations for spin S=1/2 and S=3/2 disordered antiferromagnetic Heisenberg chains show a rather distinct behavior in the two cases. While at sufficiently strong d…
Strongly disordered spin ladders
R. Mélin, Y. -C. Lin, P. Lajkó +2
The effect of quenched disorder on the low-energy properties of various antiferromagnetic spin ladder models is studied by a numerical strong disorder renormalization group method…