Articles with "square well" as a keyword



The Gross–Pitaevskii Equation for an Infinite Square Well with a Delta-Function Barrier

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Published in 2024 at "Journal of Low Temperature Physics"

DOI: 10.1007/s10909-024-03195-x

Abstract: The Gross–Pitaevskii equation is solved by analytic methods for an external double-well potential, that is, an infinite square well plus a δ\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\delta$$\end{document}-function central barrier. We find… read more here.

Keywords: gross pitaevskii; square well; pitaevskii equation; infinite square ... See more keywords

On the phase behavior of model fluids with square-well attraction in slit-like pores. Density functional approach

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Published in 2019 at "Fluid Phase Equilibria"

DOI: 10.1016/j.fluid.2018.11.005

Abstract: Abstract The phase behavior of a model fluid with square well inter-particle attraction in slit-like pores has been studied by using a density functional theory. The mean field theory and the first-order mean spherical approximation… read more here.

Keywords: behavior model; phase behavior; attraction slit; slit like ... See more keywords

Square-well self-diffusion coefficients in liquid binary alloys of alkali metals within the mean spherical approximation

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Published in 2019 at "Journal of Alloys and Compounds"

DOI: 10.1016/j.jallcom.2019.06.283

Abstract: Abstract The concentration dependencies of the self-diffusion coefficients in liquid Na–K and K–Cs alloys at T = 373 K are calculated in the framework of the linear trajectory approximation in conjunction with the square-well (SW) model treated by… read more here.

Keywords: coefficients liquid; square well; diffusion; diffusion coefficients ... See more keywords

Phase diagram of heteronuclear Janus dumbbells.

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Published in 2017 at "Soft matter"

DOI: 10.1039/c6sm02430k

Abstract: Using aggregation-volume-bias Monte Carlo simulations along with successive umbrella sampling and histogram re-weighting, we study the phase diagram of a system of dumbbells formed by two touching spheres having variable sizes, as well as different… read more here.

Keywords: phase; gas liquid; square well; diagram heteronuclear ... See more keywords

Transport properties of the square-well fluid from molecular dynamics simulation

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Published in 2024 at "Molecular Physics"

DOI: 10.1080/00268976.2024.2302385

Abstract: In this work, we have calculated self-diffusion and shear viscosity, two of the most important transport properties, of the spherical square-well (SW) fluid interacting with potential range $ \lambda = 1.5 \, \sigma $ λ=1.5σ.… read more here.

Keywords: square well; dynamics simulation; molecular dynamics; well fluid ... See more keywords

Exact equilibrium properties of square-well and square-shoulder disks in single-file confinement.

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Published in 2024 at "Physical review. E"

DOI: 10.1103/physreve.110.024601

Abstract: This study investigates the (longitudinal) thermodynamic and structural characteristics of single-file confined square-well and square-shoulder disks by employing a mapping technique that transforms the original system into a one-dimensional polydisperse mixture of nonadditive rods. Leveraging… read more here.

Keywords: square well; single file; square shoulder; shoulder disks ... See more keywords

Wigner functions of the finite square-well bound states

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Published in 2024 at "American Journal of Physics"

DOI: 10.1119/5.0071891

Abstract: The bound states of a particle confined in a one-dimensional finite square well cannot be solved analytically, since the eigen-energies are determined by transcendental equations. Here, we numerically calculate the bound states and show their… read more here.

Keywords: square well; wigner functions; functions finite; well bound ... See more keywords

Tutorial: The quantum finite square well and the Lambert W function

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Published in 2017 at "Canadian Journal of Physics"

DOI: 10.1139/cjp-2016-0602

Abstract: We present a solution of the quantum mechanics problem of the allowable energy levels of a bound particle in a one-dimensional finite square well. The method is a geometric-analytic technique utilizing the conformal mapping w… read more here.

Keywords: lambert function; quantum; finite square; square well ... See more keywords

Analytic Equation of State for the Square-well Plus Sutherland Fluid from Perturbation Theory

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Published in 2018 at "Physical Chemistry Research"

DOI: 10.22036/pcr.2017.95012.1408

Abstract: Analytic expressions were derived for the compressibility factor and residual internal energy of the square-well plus Sutherland fluid. In this derivation, we used the second order Barker-Henderson perturbation theory based on the macroscopic compressibility approximation… read more here.

Keywords: theory; well plus; square well; perturbation theory ... See more keywords
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Crystal, Fivefold and Glass Formation in Clusters of Polymers Interacting with the Square Well Potential

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Published in 2020 at "Polymers"

DOI: 10.3390/polym12051111

Abstract: We present results, from Monte Carlo (MC) simulations, on polymer systems of freely jointed chains with spherical monomers interacting through the square well potential. Starting from athermal packings of chains of tangent hard spheres, we… read more here.

Keywords: interacting square; square well; fivefold glass; well potential ... See more keywords

Modified Heisenberg Commutation Relations and the Infinite-Square Well Potential: Some Simple Consequences

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Published in 2024 at "Symmetry"

DOI: 10.3390/sym16101268

Abstract: We explore some consequences of modifying the usual Heisenberg commutation relations of two simple systems: first, the one-dimensional quantum system given by the infinite square-well potential, and second, the case of a gas of N… read more here.

Keywords: square well; heisenberg commutation; energy; infinite square ... See more keywords