Results 61 to 70 of about 55,351 (274)
Phase transitions in the frustrated Ising model on the square lattice
Physical Review B, 2013 13 pages, 13 ...
Wenan Guo +3 more
openaire +4 more sources
Entropy, 2018 The mixed spin-1/2 and spin-S Ising model on the Union Jack (centered square) lattice with four different three-spin (triplet) interactions and the uniaxial single-ion anisotropy is exactly solved by establishing a rigorous mapping equivalence with the ...
Jozef Strečka
doaj +1 more source
Thermal Ising transition in two-dimensional SU(3) Fermi lattice gases with population imbalance
Physical Review Research, 2023 We focus on three-component SU(3) Fermi gases loaded into a square optical lattice, with population imbalance between one component and the others. At strong coupling the system is described by the SU(3) Heisenberg model with an external field that ...
Hayato Motegi +3 more
doaj +1 more source
Phase transitions in a frustrated XY model with zig-zag couplings
, 1997 We study a new generalized version of the square-lattice frustrated XY model where unequal ferromagnetic and antiferromagnetic couplings are arranged in a zig-zag pattern.
%S. Teitel +35 more
core +1 more source
Physical Review Research, 2019 The nonequilibrium random-field Ising model is well studied, yet there are outstanding questions. In two dimensions, power-law scaling approaches fail and the critical disorder is difficult to pin down.
L. X. Hayden +2 more
doaj +1 more source
Continuous similarity transformation for critical phenomena: Easy-axis antiferromagnetic XXZ model
Physical Review Research, 2023 We apply continuous similarity transformations (CSTs) to the easy-axis antiferromagnetic XXZ model on the square lattice. The CST flow equations are truncated in momentum space by the scaling dimension d so that all contributions with d≤2 are taken into ...
Matthias R. Walther +3 more
doaj +1 more source
Ising nematic fluid phase of hard-core dimers on the square lattice
, 2014 We present a model of classical hard-core dimers on the square lattice that contains an Ising nematic phase in its phase diagram. We consider a model with an attractive interaction for parallel dimers on a given plaquette of the square lattice and an ...
Charrier, Daniel +2 more
core +1 more source
Bond diluted Ising model in 2D
EPJ Web of Conferences, 2013 The bond diluted Ising model is studied by Monte Carlo method. The simulation is carried out on a two dimensional square lattice with missing bonds and free boundary conditions.
Bouamrane Rachid +2 more
doaj +1 more source
Percolation and number of phases in the 2D Ising model
, 1999 We reconsider the percolation approach of Russo, Aizenman and Higuchi for showing that there exist only two phases in the Ising model on the square lattice.
Aizenman M. +7 more
core +6 more sources
Topological phases of shaken quantum Ising lattices
New Journal of Physics, 2016 The quantum compass model consists of a two-dimensional square spin lattice where the orientation of the spin–spin interactions depends on the spatial direction of the bonds.
Samuel Fernández-Lorenzo +2 more
doaj +1 more source