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Applications of Combinatorial Analysis to the Calculation of the Partition Function of the Ising Model [PDF]

open access: yes, 2009
The research work discussed in this thesis investigated the application of combinatorics and graph theory in the analysis of the partition function of the Ising Model. Chapter 1 gives a general introduction to the partition function of the Ising Model
Lin, Ming-Shr Matt
core   +1 more source

Pushing the limits of Monte Carlo simulations for the three-dimensional Ising model. [PDF]

open access: yesPhysical Review E, 2017
While the three-dimensional Ising model has defied analytic solution, various numerical methods like Monte Carlo, Monte Carlo renormalization group, and series expansion have provided precise information about the phase transition.
A. M. Ferrenberg, Jia-Hao Xu, D. Landau
semanticscholar   +1 more source

A CRITICAL ISING MODEL ON THE LABYRINTH [PDF]

open access: yesInternational Journal of Modern Physics B, 1994
A zero-field Ising model with ferromagnetic coupling constants on the so-called Labyrinth tiling is investigated. Alternatively, this can be regarded as an Ising model on a square lattice with a quasi-periodic distribution of up to eight different coupling constants.
Baake, M., Grimm, U.G., Baxter, R.J.
openaire   +4 more sources

Ising models and multiresolution quad-trees [PDF]

open access: yes, 2003
We study percolation and Ising models defined on generalizations of quad-trees used in multiresolution image analysis. These can be viewed as trees for which each mother vertex has 2(d) daughter vertices, and for which daughter vertices are linked ...
Wilson, Roland, Kendall, W. S.
core   +1 more source

Petri Net Modeling for Ising Model Formulation in Quantum Annealing

open access: yesApplied Sciences, 2021
Quantum annealing is an emerging new platform for combinatorial optimization, requiring an Ising model formulation for optimization problems. The formulation can be an essential obstacle to the permeation of this innovation into broad areas of everyday ...
Morikazu Nakamura   +2 more
doaj   +1 more source

Notes on the Ising Model [PDF]

open access: yesProgress of Theoretical Physics, 1983
Summary: From the introduction: The partition function for the two-dimensional Ising model has been represented by \textit{S. Samuel} in the form of an integral over anticommuting variables [J. Math. Phys. 21, No. 12, 2806--2833 (1980)]. Several authors have justified the representation by connecting it with the underlying fermion field.
openaire   +2 more sources

Toward a 3d Ising model with a weakly-coupled string theory dual

open access: yesSciPost Physics, 2020
It has long been expected that the 3d Ising model can be thought of as a string theory, where one interprets the domain walls that separate up spins from down spins as two-dimensional string worldsheets.
Nabil Iqbal, John McGreevy
doaj   +1 more source

Quantum approximate optimization of the long-range Ising model with a trapped-ion quantum simulator

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2019
Significance Variational quantum algorithms combine quantum resources with classical optimization methods, providing a promising approach to solve both quantum many-body and classical optimization problems.
G. Pagano   +15 more
semanticscholar   +1 more source

Quantum annealing in the transverse Ising model [PDF]

open access: yes, 1998
We introduce quantum fluctuations into the simulated annealing process of optimization problems, aiming at faster convergence to the optimal state. Quantum fluctuations cause transitions between states and thus play the same role as thermal fluctuations ...
T. Kadowaki, H. Nishimori
semanticscholar   +1 more source

Eigenstate thermalization in the two-dimensional transverse field Ising model. II. Off-diagonal matrix elements of observables. [PDF]

open access: yesPhysical Review E, 2017
We study the matrix elements of few-body observables, focusing on the off-diagonal ones, in the eigenstates of the two-dimensional transverse field Ising model.
R. Mondaini, M. Rigol
semanticscholar   +1 more source

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