Results 11 to 20 of about 21,598,889 (357)

A Method of the Riemann–Hilbert Problem for Zhang’s Conjecture 2 in a Ferromagnetic 3D Ising Model: Topological Phases

open access: yesMathematics, 2021
A method of the Riemann–Hilbert problem is employed for Zhang’s conjecture 2 proposed in Philo. Mag. 87 (2007) 5309 for a ferromagnetic three-dimensional (3D) Ising model in a zero external magnetic field.
Zhidong Zhang, Osamu Suzuki
doaj   +1 more source

Revising the universality class of the four-dimensional Ising model

open access: yesNuclear Physics B, 2023
The aim of this paper is to determine the behavior of the specific heat of the 4-dimensional Ising model in a region around the critical temperature, and via that determine if the Ising model and the ϕ4-model belong to the same universality class in ...
P.H. Lundow, K. Markström
doaj   +1 more source

Guiding Principle for Minor-Embedding in Simulated-Annealing-Based Ising Machines

open access: yesIEEE Access, 2020
We propose a novel type of minor-embedding (ME) in simulated-annealing-based Ising machines. The Ising machines can solve combinatorial optimization problems. Many combinatorial optimization problems are mapped to find the ground (lowest-energy) state of
Tatsuhiko Shirai   +2 more
doaj   +1 more source

Performance Comparison of Typical Binary-Integer Encodings in an Ising Machine

open access: yesIEEE Access, 2021
The differences in performance among binary-integer encodings in an Ising machine, which can solve combinatorial optimization problems, are investigated.
Kensuke Tamura   +4 more
doaj   +1 more source

Macroscopically frustrated Ising model [PDF]

open access: yesPhysical Review E, 2001
A disordered spin glass model where both static and dynamical properties depend on macroscopic magnetizations is presented. These magnetizations interact via random couplings and, therefore, the typical quenched realization of the system exhibit a macroscopic frustration.
Pasquini M, SERVA, Maurizio
openaire   +3 more sources

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, Jiahao Xu, D. Landau
semanticscholar   +1 more source

Trip Planning Based on subQUBO Annealing

open access: yesIEEE Access, 2023
The trip planning problem (TPP) can be formulated as a combinatorial optimization problem that searches for the best route to visit a series of landmarks and hotels.
Tatsuya Noguchi   +3 more
doaj   +1 more source

The critical temperature of the 2D-Ising model through deep learning autoencoders

open access: yesEuropean Physical Journal B : Condensed Matter Physics, 2020
We investigate deep learning autoencoders for the unsupervised recognition of phase transitions in physical systems formulated on a lattice. We focus our investigation on the 2-dimensional ferromagnetic Ising model and then test the application of ...
C. Alexandrou   +3 more
semanticscholar   +1 more source

Exact Ising model simulation on a quantum computer [PDF]

open access: yesQuantum, 2018
We present an exact simulation of a one-dimensional transverse Ising spin chain with a quantum computer. We construct an efficient quantum circuit that diagonalizes the Ising Hamiltonian and allows to obtain all eigenstates of the model by just preparing
Alba Cervera-Lierta
semanticscholar   +1 more source

Cell death and survival due to cytotoxic exposure modelled as a two-state Ising system [PDF]

open access: yesRoyal Society Open Science, 2020
Cancer chemotherapy agents are assessed for their therapeutic utility primarily by their ability to cause apoptosis of cancer cells and their potency is given by an IC50 value.
S. Arbabi Moghadam   +2 more
doaj   +1 more source

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