{"title":"Static conductivity of liquid metallic hydrogen","authors":"S.A. Maslov, P.R. Levashov, S.A. Trigger","doi":"10.1016/j.physa.2025.130557","DOIUrl":null,"url":null,"abstract":"<div><div>The static conductivity of a system of Coulomb particles with strong interaction of ions at arbitrary degeneracy of electrons is investigated. To study the influence of structure on static conductivity, the pair correlation function and structure factors are calculated by the molecular dynamics method for the Coulomb and screened potentials. The static conductivity is calculated based on the collision frequency, in which screening is taken into account via the generalized Debye radius. This approach allows one to consider conductivity in a wide temperature range from a degenerate to a classical electron subsystem. Specific numerical results of the work relate to liquid metallic hydrogen, where there is no need to use potentials with adjustable parameters. The structure factors and conductivity are calculated for the Coulomb interaction between all charged particles.</div></div>","PeriodicalId":20152,"journal":{"name":"Physica A: Statistical Mechanics and its Applications","volume":"668 ","pages":"Article 130557"},"PeriodicalIF":2.8000,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physica A: Statistical Mechanics and its Applications","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0378437125002092","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The static conductivity of a system of Coulomb particles with strong interaction of ions at arbitrary degeneracy of electrons is investigated. To study the influence of structure on static conductivity, the pair correlation function and structure factors are calculated by the molecular dynamics method for the Coulomb and screened potentials. The static conductivity is calculated based on the collision frequency, in which screening is taken into account via the generalized Debye radius. This approach allows one to consider conductivity in a wide temperature range from a degenerate to a classical electron subsystem. Specific numerical results of the work relate to liquid metallic hydrogen, where there is no need to use potentials with adjustable parameters. The structure factors and conductivity are calculated for the Coulomb interaction between all charged particles.
期刊介绍:
Physica A: Statistical Mechanics and its Applications
Recognized by the European Physical Society
Physica A publishes research in the field of statistical mechanics and its applications.
Statistical mechanics sets out to explain the behaviour of macroscopic systems by studying the statistical properties of their microscopic constituents.
Applications of the techniques of statistical mechanics are widespread, and include: applications to physical systems such as solids, liquids and gases; applications to chemical and biological systems (colloids, interfaces, complex fluids, polymers and biopolymers, cell physics); and other interdisciplinary applications to for instance biological, economical and sociological systems.