Results 21 to 30 of about 2,678,219 (375)

Study on dispersion characteristics of square solid-core photonic crystal fibers with As2S3 substrate

open access: yesTạp chí Khoa học, 2022
The dispersion characteristics of As2S3 solid-core photonic crystal fibers were investigated with the change of structural parameters including filling factor (d/Λ) and lattice constant (Λ).
DANG Van Trong   +4 more
doaj   +1 more source

Complex Density Wave Orders and Quantum Phase Transitions in a Model of Square-Lattice Rydberg Atom Arrays. [PDF]

open access: yesPhysical Review Letters, 2019
We describe the zero-temperature phase diagram of a model of a two-dimensional square-lattice array of neutral atoms, excited into Rydberg states and interacting via strong van der Waals interactions.
R. Samajdar   +4 more
semanticscholar   +1 more source

Percolation modeling of hydraulic hysteresis in a porous media [PDF]

open access: yesКомпьютерные исследования и моделирование, 2014
In this paper we consider various models of hydraulic hysteresis in invasive mercury porosimetry. For simulating the hydraulic hysteresis is used isotropic site percolation on three-dimensional square lattices with $(1,\,\pi)$-neighborhood.
Pavel Valentinovich Moskalev
doaj   +1 more source

Polarons and bipolarons in a two-dimensional square lattice

open access: yesSciPost Physics, 2023
Quasiparticles and their interactions are a key part of our understanding of quantum many-body systems. Quantum simulation experiments with cold atoms have in recent years advanced our understanding of isolated quasiparticles, but so far they have ...
Shanshan Ding, G. A. Domínguez-Castro, Aleksi Julku, Arturo Camacho-Guardian, Georg M. Bruun
doaj   +1 more source

Finite Element Analysis Study on Lattice Structure Fabricated Recycled Polystyrene from Post-used Styrofoam Waste [PDF]

open access: yesMATEC Web of Conferences, 2021
Lattice structure design widely applicable for 3D printed components. This research investigated the lattice structure with different shape and relative density using Finite Element Analysis (FEA) simulation.
Juarez Chia Zheng Jie   +5 more
doaj   +1 more source

Thermal Hall effect and topological edge states in a square-lattice antiferromagnet [PDF]

open access: yesPhysical review B, 2018
We show that the two dimensional spatial inversion-symmetry (SIS) broken square lattice antiferromagnet with easy-plane spin anisotropy exhibits a thermal Hall effect and the edge modes characterized by the Z 2 topological invariant.
M. Kawano, C. Hotta
semanticscholar   +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.
Dipa Saha   +2 more
openaire   +4 more sources

Quantum codes for quantum simulation of fermions on a square lattice of qubits [PDF]

open access: yesPhysical Review A, 2018
Quantum simulation of fermionic systems is a promising application of quantum computers, but to program them, we need to map fermionic states and operators to qubit states and quantum gates.
M. Steudtner, S. Wehner
semanticscholar   +1 more source

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 ...
R. Rajesh, Jürgen F. Stilck
openaire   +4 more sources

Spectral signatures of fractionalization in the frustrated Heisenberg model on the square lattice [PDF]

open access: yesPhysical review B, 2018
We employ a variational Monte Carlo approach to efficiently obtain the dynamical structure factor for the spin-1/2 $J_1-J_2$ Heisenberg model on the square lattice.
Francesco Ferrari   +3 more
semanticscholar   +1 more source

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