Results 21 to 30 of about 32,713 (278)

Quantum Ising model on the frustrated square lattice [PDF]

open access: yesPhysical Review E, 2019
We investigate the role of a transverse field on the Ising square antiferromagnet with first-($J_1$) and second-($J_2$) neighbor interactions. Using a cluster mean-field approach, we provide a telltale characterization of the frustration effects on the phase boundaries and entropy accumulation process emerging from the interplay between quantum and ...
M. Schmidt, F. M. Zimmer, N. Kellermann
openaire   +4 more sources

Phase transitions of antiferromagnetic Ising spins on the zigzag surface of an asymmetrical Husimi lattice [PDF]

open access: yesRoyal Society Open Science, 2019
An asymmetrical two-dimensional Ising model with a zigzag surface, created by diagonally cutting a regular square lattice, has been developed to investigate the thermodynamics and phase transitions on surface by the methodology of recursive lattice ...
Ran Huang, Purushottam D. Gujrati
doaj   +1 more source

Predicting long- and short-range order with restricted Boltzmann machine

open access: yesAIP Advances, 2021
Generalization properties of the restricted Boltzmann machine (RBM) for two-dimensional Ising model are investigated. Both long-range and short-range order are examined: the first is studied for a spin lattice with ferromagnetic interaction, and the ...
M. A. Timirgazin, A. K. Arzhnikov
doaj   +1 more source

Ising model as Wilson-Majorana fermions

open access: yesNuclear Physics B, 2020
We show the equivalence of the 2D Ising model to standard free Euclidean lattice fermions of the Wilson Majorana type. The equality of the loop representations for the partition functions of both systems is established exactly for finite lattices with ...
Ulli Wolff
doaj   +1 more source

Phase diagram of the dissipative quantum Ising model on a square lattice [PDF]

open access: yesPhysical Review B, 2018
9 pages, 7 figures.
Davide Rossini   +7 more
openaire   +6 more sources

Simulating excitation spectra with projected entangled-pair states [PDF]

open access: yes, 2018
We develop and benchmark a technique for simulating excitation spectra of generic two-dimensional quantum lattice systems using the framework of projected entangled-pair states (PEPS).
Haegeman, Jutho   +2 more
core   +2 more sources

Application of convolutional neural networks to spin models studies

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics, 2022
Nowadays, methods and techniques of Deep Learning are being used in various scientific areas. In this paper, the applying of convolutional neural network was considered in frame of problems from statistical physics and computer simulation of magnetic ...
Perzhu Aleksandr   +5 more
doaj   +1 more source

The ALF (Algorithms for Lattice Fermions) project release 1.0. Documentation for the auxiliary field quantum Monte Carlo code

open access: yesSciPost Physics, 2017
The Algorithms for Lattice Fermions package provides a general code for the finite temperature auxiliary field quantum Monte Carlo algorithm. The code is engineered to be able to simulate any model that can be written in terms of sums of single-body ...
Martin Bercx, Florian Goth, Johannes S. Hofmann, Fakher F. Assaad
doaj   +1 more source

Quantum algorithms for classical lattice models [PDF]

open access: yes, 2011
We give efficient quantum algorithms to estimate the partition function of (i) the six vertex model on a two-dimensional (2D) square lattice, (ii) the Ising model with magnetic fields on a planar graph, (iii) the Potts model on a quasi 2D square lattice,
Cuevas, G. De las   +3 more
core   +3 more sources

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