Fluctuation profiles in inhomogeneous fluids

Fuente: arXiv
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Autori principali: Eckert, Tobias, Stuhlmüller, Nex C. X., Sammüller, Florian, Schmidt, Matthias
Natura: Preprint
Pubblicazione: 2020
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author Eckert, Tobias
Stuhlmüller, Nex C. X.
Sammüller, Florian
Schmidt, Matthias
author_facet Eckert, Tobias
Stuhlmüller, Nex C. X.
Sammüller, Florian
Schmidt, Matthias
contents Three one-body profiles that correspond to local fluctuations in energy, in entropy, and in particle number are used to describe the equilibrium properties of inhomogeneous classical many-body systems. Local fluctuations are obtained from thermodynamic differentiation of the density profile or equivalently from average microscopic covariances. The fluctuation profiles follow from functional generators and they satisfy Ornstein-Zernike relations. Computer simulations reveal markedly different fluctuations in confined fluids with Lennard-Jones, hard sphere, and Gaussian core interactions.
format Preprint
id arxiv_https___arxiv_org_abs_2012_05594
institution arXiv
publishDate 2020
record_format arxiv
spellingShingle Fluctuation profiles in inhomogeneous fluids
Eckert, Tobias
Stuhlmüller, Nex C. X.
Sammüller, Florian
Schmidt, Matthias
Soft Condensed Matter
Statistical Mechanics
Three one-body profiles that correspond to local fluctuations in energy, in entropy, and in particle number are used to describe the equilibrium properties of inhomogeneous classical many-body systems. Local fluctuations are obtained from thermodynamic differentiation of the density profile or equivalently from average microscopic covariances. The fluctuation profiles follow from functional generators and they satisfy Ornstein-Zernike relations. Computer simulations reveal markedly different fluctuations in confined fluids with Lennard-Jones, hard sphere, and Gaussian core interactions.
title Fluctuation profiles in inhomogeneous fluids
topic Soft Condensed Matter
Statistical Mechanics
url https://arxiv.org/abs/2012.05594