Results 21 to 30 of about 59,462 (310)

Folding the square-diagonal lattice [PDF]

open access: yesNuclear Physics B, 1998
We study the problem of "phantom" folding of the two-dimensional square lattice, in which the edges and diagonals of each face can be folded. The non-vanishing thermodynamic folding entropy per face $s \simeq .2299(1)$ is estimated both analytically and numerically, by successively mapping the model onto a dense loop model, a spin model and a new 28 ...
openaire   +3 more sources

Resistance computation of generalized decorated square and simple cubic network lattices

open access: yesResults in Physics, 2019
In the present work, the lattice Green’s function technique has been used to investigate the equivalent two-site resistance between arbitrary pairs of lattice sites in infinite, generalized decorated square and simple cubic lattices with identical ...
M.Q. Owaidat, J.H. Asad, Zhi-Zhong Tan
doaj   +1 more source

Estimates of threshold and strength of percolation clusters on square lattices with (1,)-neighborhood [PDF]

open access: yesКомпьютерные исследования и моделирование, 2014
In this paper we consider statistical estimates of threshold and strength of percolation clusters on square lattices. The percolation threshold pc and the strength of percolation clusters P for a square lattice with (1,)-neighborhood depends not only on ...
Pavel Valentinovich Moskalev
doaj   +1 more source

A non-centrosymmetric square lattice with an axial–bending coupling

open access: yesMaterials & Design, 2022
Metamaterials can enable the design of exotic properties, including the mechanical coupling of different loading modes. Chirality and non-centrosymmetry are known to play essential roles in the rational design of coupling effects.
Zhiming Cui, Zihe Liang, Jaehyung Ju
doaj   +1 more source

Percolation in a distorted square lattice [PDF]

open access: yesPhysical Review E, 2019
This paper presents a Monte-Carlo study of percolation in a distorted square lattice, in which, the adjacent sites are not equidistant. Starting with an undistorted lattice, the position of the lattice sites are shifted through a tunable parameter $ $ to create a distorted empty lattice.
Mitra, Sayantan   +2 more
openaire   +3 more sources

Polydispersed rods on the square lattice [PDF]

open access: yesPhysical Review E, 2015
We study the grand-canonical solution of a system of hard polydispersed rods placed on the square lattice using transfer matrix and finite size scaling calculations. We determine the critical line separating an isotropic from a nematic phase. No second transition to a disordered phase is found at high density, contrary to what is observed in the ...
Stilck, J. F., Rajesh, R.
openaire   +3 more sources

Ground state with nonzero spontaneous magnetization of the two-dimensional spin-1/2 Heisenberg antiferromagnet with frustration

open access: yesAIP Advances, 2018
The S = 1/2 Heisenberg antiferromagnet on the two-dimensional pyramid lattice is studied by the numerical-diagonalization method. This lattice is obtained by the combination of the Lieb lattice and the square lattice. It is known that when interaction on
Toru Sakai, Hiroki Nakano
doaj   +1 more source

Polarization Converter Based on Square Lattice Photonic Crystal Fiber with Double-Hole Units

open access: yesCrystals, 2019
In this study, a novel polarization converter (PC) based on square lattice photonic crystal fiber (PCF) is proposed and analyzed. For each square unit in the cladding, two identical circular air holes are arranged symmetrically along the y = x ...
Zejun Zhang   +3 more
doaj   +1 more source

Interacting Classical Dimers on the Square Lattice [PDF]

open access: yesPhysical Review Letters, 2005
4 pages, 4 figures; v2 : Added results on doped models; published ...
Alet, Fabien   +5 more
openaire   +4 more sources

Interplay of Spin and Spatial Anisotropy in Low-Dimensional Quantum Magnets with Spin 1/2

open access: yesCrystals, 2018
Quantum Heisenberg chain and square lattices are important paradigms of a low-dimensional magnetism. Their ground states are determined by the strength of quantum fluctuations.
Alžbeta Orendáčová   +5 more
doaj   +1 more source

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