Results 71 to 80 of about 146,177 (189)

Exact solutions to plaquette Ising models with free and periodic boundaries

Nuclear Physics B, 2017
An anisotropic limit of the 3d plaquette Ising model, in which the plaquette couplings in one direction were set to zero, was solved for free boundary conditions by Suzuki (1972) [1], who later dubbed it the fuki-nuke, or “no-ceiling”, model.
Marco Mueller, Desmond A. Johnston, Wolfhard Janke   +2 more
doaj   +1 more source

Modelling is for Reasoning

, 2007
In a broad sense, computing is an area of knowledge from which a popular and effective technology emerged long before a solid, specific, scientific methodology, let alone formal foundations, had been put forward. This might explain some of the weaknesses in the software industry, on the one hand, as well as an excessively technology-oriented view which
Barbosa, L. S., Martinho, Maria Helena
openaire   +2 more sources

Digitizing the Neveu-Schwarz Model on the Lightcone Worldsheet

, 2010
The purpose of this article is to extend the lightcone worldsheet lattice description of string theory to include the Neveu-Schwarz model. We model each component of the fermionic worldsheet field by a critical Ising model.
Thorn, Charles B.
core   +1 more source

Tensor Networks for Noninvertible Symmetries in 3+1D and Beyond

Physical Review X
Tensor networks provide a natural language for noninvertible symmetries in general Hamiltonian lattice models. We use ZX-diagrams, which are tensor network presentations of quantum circuits, to define a noninvertible operator implementing the Wegner ...
Pranay Gorantla, Shu-Heng Shao, Nathanan Tantivasadakarn   +2 more
doaj   +1 more source

Emergent Ising symmetry and supercritical fluids

Journal of High Energy Physics
The symmetry of Ising model questions any single crossover scenario for supercritical fluids. In this work, we firstly study a pair of thermodynamic crossovers L ± analytically for the Van der Waals class fluids.
Hong-Ming Cui, Zhong-Ying Fan
doaj   +1 more source

Discrete JT gravity as an Ising model

Journal of High Energy Physics
Inspired by the program of discrete holography, we show that Jackiw-Teitelboim (JT) gravity on a hyperbolic tiling of Euclidean AdS2 gives rise to an Ising model on the dual lattice, subject to a topological constraint.
Johanna Erdmenger, Jonathan Karl, Yanick Thurn, Matthias Vojta, Zhuo-Yu Xian   +4 more
doaj   +1 more source

Constrained percolation, Ising model, and XOR Ising model on planar lattices

Random Structures & Algorithms, 2020
We study site percolation models on planar lattices including the [m,4,n,4] lattice and the square tilings on the Euclidean plane () or the hyperbolic plane (), satisfying certain local constraints on degree‐4 faces. These models are closely related to Ising models and XOR Ising models (product of two i.i.d Ising models) on regular tilings of or .
openaire   +4 more sources

What is Mathematical Modeling?

Journal of Mathematics Education at Teachers College, 2011
Journal of Mathematics Education at Teachers College, Vol. 2 No.
openaire   +3 more sources

Determinação de curvas de histerese

Revista Brasileira de Ensino de Física
Neste trabalho apresentamos uma discussão detalhada sobre as curvas de histerese obtidas no caso do mais simples sistema magnético, o modelo de Ising. As curvas de histerese são construídas através de estados estáveis e metaestáveis do sistema.
Vanessa Souza Leite, Wagner Figueiredo
doaj   +1 more source

Simulating QAOA operation using Cirq and qsim quantum frameworks

Discrete and Continuous Models and Applied Computational Science
The problem of finding the lowest-energy state in the Ising model with a longitudinal magnetic field is studied for two- and three-dimensional lattices of various sizes using the Quantum Approximate Optimization Algorithm (QAOA).
Yuri G. Palii, Alla A. Bogolubskaya, Denis A. Yanovich   +2 more
doaj   +1 more source