Short-range screening potentials for classical Coulomb fluids: Monte Carlo sampling and cluster model studies

Setsuo Ichimaru, Shuji Ogata, Kenji Tsuruta

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Screening potential, the balance between the bare Coulomb repulsion and the potential of mean force in a charged liquid, plays an essential role in the theoretical estimation of enhancement for the nuclear reaction rates in dense stellar matter. For the accurate assessment of the screening potential at short interparticle separations, we revisit the first-principles calculations for the coefficients of the Widom expansion and undertake extra-long Monte Carlo samplings in specifically designed binary-ionic systems. The results are compared with those obtained from an approximate estimation based on extrapolation from intermediate distances. We also present model calculations of the screening potential with two-ion clusters, which shed light on the relation between the short- and intermediate-range behaviors.

Original languageEnglish
Pages (from-to)2977-2985
Number of pages9
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume50
Issue number4
DOIs
Publication statusPublished - 1994
Externally publishedYes

Fingerprint

Monte Carlo Sampling
Screening
screening
sampling
Fluid
fluids
Range of data
First-principles Calculation
Reaction Rate
Extrapolation
Enhancement
nuclear reactions
Model
Liquid
Binary
extrapolation
reaction kinetics
Coefficient
expansion
augmentation

ASJC Scopus subject areas

  • Mathematical Physics
  • Physics and Astronomy(all)
  • Condensed Matter Physics
  • Statistical and Nonlinear Physics

Cite this

@article{775b1f5c4e9343fba830e860768e38c5,
title = "Short-range screening potentials for classical Coulomb fluids: Monte Carlo sampling and cluster model studies",
abstract = "Screening potential, the balance between the bare Coulomb repulsion and the potential of mean force in a charged liquid, plays an essential role in the theoretical estimation of enhancement for the nuclear reaction rates in dense stellar matter. For the accurate assessment of the screening potential at short interparticle separations, we revisit the first-principles calculations for the coefficients of the Widom expansion and undertake extra-long Monte Carlo samplings in specifically designed binary-ionic systems. The results are compared with those obtained from an approximate estimation based on extrapolation from intermediate distances. We also present model calculations of the screening potential with two-ion clusters, which shed light on the relation between the short- and intermediate-range behaviors.",
author = "Setsuo Ichimaru and Shuji Ogata and Kenji Tsuruta",
year = "1994",
doi = "10.1103/PhysRevE.50.2977",
language = "English",
volume = "50",
pages = "2977--2985",
journal = "Physical Review E",
issn = "2470-0045",
publisher = "American Physical Society",
number = "4",

}

TY - JOUR

T1 - Short-range screening potentials for classical Coulomb fluids

T2 - Monte Carlo sampling and cluster model studies

AU - Ichimaru, Setsuo

AU - Ogata, Shuji

AU - Tsuruta, Kenji

PY - 1994

Y1 - 1994

N2 - Screening potential, the balance between the bare Coulomb repulsion and the potential of mean force in a charged liquid, plays an essential role in the theoretical estimation of enhancement for the nuclear reaction rates in dense stellar matter. For the accurate assessment of the screening potential at short interparticle separations, we revisit the first-principles calculations for the coefficients of the Widom expansion and undertake extra-long Monte Carlo samplings in specifically designed binary-ionic systems. The results are compared with those obtained from an approximate estimation based on extrapolation from intermediate distances. We also present model calculations of the screening potential with two-ion clusters, which shed light on the relation between the short- and intermediate-range behaviors.

AB - Screening potential, the balance between the bare Coulomb repulsion and the potential of mean force in a charged liquid, plays an essential role in the theoretical estimation of enhancement for the nuclear reaction rates in dense stellar matter. For the accurate assessment of the screening potential at short interparticle separations, we revisit the first-principles calculations for the coefficients of the Widom expansion and undertake extra-long Monte Carlo samplings in specifically designed binary-ionic systems. The results are compared with those obtained from an approximate estimation based on extrapolation from intermediate distances. We also present model calculations of the screening potential with two-ion clusters, which shed light on the relation between the short- and intermediate-range behaviors.

UR - http://www.scopus.com/inward/record.url?scp=4043172214&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=4043172214&partnerID=8YFLogxK

U2 - 10.1103/PhysRevE.50.2977

DO - 10.1103/PhysRevE.50.2977

M3 - Article

AN - SCOPUS:4043172214

VL - 50

SP - 2977

EP - 2985

JO - Physical Review E

JF - Physical Review E

SN - 2470-0045

IS - 4

ER -