Results 41 to 50 of about 146,177 (189)

TRICRITICAL ISING MODEL NEAR CRITICALITY [PDF]

International Journal of Modern Physics A, 1998
The most relevant thermal perturbation of the continuous d=2 minimal conformal theory with c=7/10 (Tricritical Ising Model) is treated here. This model describes the scaling region of the ϕ6 universality class near the tricritical point. The problematic IR divergences of the naive perturbative expansion around conformal theories are dealt within the ...
GUIDA R, MAGNOLI, NICODEMO
openaire   +4 more sources

Free-Fermion Models and Two-Dimensional Ising Models Under Zero Field and Imaginary Field i(π/2)k_BT

Entropy
The Ising model is famous in condensed matter and statistical physics. In this work we present a free-fermion formulation of the two-dimensional classical Ising models on honeycomb, triangular and Kagomé lattices. Each Ising model is studied in the cases
De-Zhang Li, Xin Wang, Xiao-Bao Yang
doaj   +1 more source

GSTE is partitioned model checking [PDF]

Formal Methods in System Design, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Sebastiani, Roberto, E. Siengeman, Tonetta, Stefano, M. Vardi   +3 more
openaire   +5 more sources

An algorithmic proof for the completeness of two-dimensional Ising model

, 2012
We show that the two dimensional Ising model is complete, in the sense that the partition function of any lattice model on any graph is equal to the partition function of the 2D Ising model with complex coupling.
Mohammad Hossein Zarei, R. J. Baxter, Vahid Karimipour   +2 more
core   +1 more source

Bound states in the 3d Ising model and implications for QCD at finite temperature and density [PDF]

, 2001
We study the spectrum of bound states of the three dimensional Ising model in the (h,beta) plane near the critical point. We show the existence of an unbinding line, defined as the boundary of the region where bound states exist.
Caselle, Caselle, Fortunato, K. Zarembo, Karsch, Kertész, M. Caselle, M. Hasenbusch, P. Provero, Satz, Son, Svetitsky, Wang   +12 more
core   +2 more sources

Interfering directed paths and the sign phase transition

, 2010
We revisit the question of the "sign phase transition" for interfering directed paths with real amplitudes in a random medium. The sign of the total amplitude of the paths to a given point may be viewed as an Ising order parameter, so we suggest that a ...
B. Spivak, David A. Huse, Hyungwon Kim, V. L. Nguyen, V. L. Nguyen   +4 more
core   +1 more source

Absence of a metallic phase in random-bond Ising models in two dimensions: applications to disordered superconductors and paired quantum Hall states

, 2000
When the two-dimensional random-bond Ising model is represented as a noninteracting fermion problem, it has the same symmetries as an ensemble of random matrices known as class D.
A. Altland, A.J. Bray, A.W.W. Ludwig, Andreas W. W. Ludwig, D.S. Fisher, D.S. Fisher, H. Nishimori, I.A. Gruzberg, J. Cardy, J.A. Blackman, J.A. Blackman, J.T. Chalker, K. Binder, L. Dixon, L. Kadanoff, M. Bocquet, M.R. Zirnbauer, N. Kawashima, N. Read, N. Read, P. Le Doussal, P. Le Doussal, P.W. Brouwer, R. Bundschuh, R.J. Baxter, S. Cho, S. Vishveshwara, T. Senthil, T. Senthil, T. Senthil, V. Kagalovsky, W.L. McMillan   +31 more
core   +1 more source

Ground state of a spin-1/2 Heisenberg-Ising two-leg ladder with XYZ intra-rung coupling

Condensed Matter Physics, 2013
The quantum spin-1/2 two-leg ladder with an anisotropic XYZ Heisenberg intra-rung interaction and Ising inter-rung interactions is treated by means of a rigorous approach based on the unitary transformation.
T. Verkholyak, J. Strečka
doaj   +1 more source

Comments on Sweeny and Gliozzi dynamics for simulations of Potts models in the Fortuin-Kasteleyn representation

, 2002
We compare the correlation times of the Sweeny and Gliozzi dynamics for two-dimensional Ising and three-state Potts models, and the three-dimensional Ising model for the simulations in the percolation prepresentation.
A. M. Ferrenberg, C. F. Baillie, C. M. Fortuin, D. W. Heermann, F. Gliozzi, F. Y. Wu, H. Müller-Krumbhaar, Jian-Sheng Wang, L. Chayes, M. Sweeny, Oner Kozan, P. W. Kasteleyn, R. H. Swendsen, Robert H. Swendsen, U. Wolff, U. Wolff, U. Wolff   +16 more
core   +1 more source

Finite-size scaling of the majority-voter model above the upper critical dimension

Condensed Matter Physics, 2023
The majority-voter model is studied by Monte Carlo simulations on hypercubic lattices of dimension d = 2 to 7 with periodic boundary conditions. The critical exponents associated to the finite-size scaling of the magnetic susceptibility are shown to be ...
C. Chatelain
doaj   +1 more source