378 citations · 4k across the 141 of their papers we have counts for
7 papers · 1 filter
Finite-Size Scaling and Universality in the Spin 1 Quantum XY Chain
Walter Hofstetter, Malte Henkel
The spin-1 XY chain in a transverse field is studied using finite-size scaling. The ground state phase diagram displays a paramagnetic, an ordered ferromagnetic and an ordered osci…
On the Phase Diagram of the q->1 Extended Potts Model and Lattice Animal Collapse
Malte Henkel
The phase diagram of the two-dimensional extended q-states Potts model is investigated in the q->1 limit. This is equivalent to studying the phase diagram of a two-dimensional infi…
Domain Wall in the Spin-S Quantum Ising Chain
Malte Henkel
Domain walls in the spin S quantum Ising chain at zero temperature are considered. Quantum effects prevent the walls from being sharp and delocalize the exact eigenstates. The abse…
EQUIVALENCES BETWEEN STOCHASTIC SYSTEMS
Malte Henkel, Enzo Orlandini, Gunter M. Schütz
Time-dependent correlation functions of (unstable) particles undergoing biased or unbiased diffusion, coagulation and annihilation are calculated. This is achieved by similarity tr…
SCHRÖDINGER INVARIANCE IN DISCRETE STOCHASTIC SYSTEMS
Malte Henkel, Gunter Schütz
Local scale invariance for lattice models is studied using new realizations of the Schrödinger algebra. The two-point function is calculated and it turns out that the result can be…
DOMAIN WALLS IN THE QUANTUM TRANSVERSE ISING MODEL
Malte Henkel, A. Brooks Harris, Marek Cieplak
We discuss several problems concerning domain walls in the spin Ising model at zero temperature in a magnetic field, , applied in the direction. Some results are al…
Anisotropic Scaling in Layered Aperiodic Ising Systems
B. Berche, P. E. Berche, M. Henkel +4
The influence of a layered aperiodic modulation of the couplings on the critical behaviour of the two-dimensional Ising model is studied in the case of marginal perturbations. The…