Liquid-vapor criticality in coulombic and related fluids - What can be learned from computer simulations?

P J Camp, C D Daub, G N Patey

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract / Description of output

The liquid/vapor criticality of Coulombic and other fluids characterized by long-range interactions is investigated using canonical and grand-canonical Monte Carlo computer simulations. It is shown that while mixed-field finite-size scaling methods appear consistent with the theoretically expected universality class (Ising or classical depending on the potential), the constant-volume heat capacity shows a very strong dependence on the particular ensemble employed. Furthermore, for Coulombic and related systems, the heat capacities do not show the expected Ising-like behavior for the largest systems that have been simulated. The ensemble dependence of the constant-volume heat capacity and its still puzzling behavior will be discussed in some detail.

Original languageEnglish
Title of host publicationIonic Soft Matter: Modern Trends in Theory and Applications
EditorsD Henderson, M Holovko, A Trokhymchuk
Place of PublicationDORDRECHT
PublisherSpringer
Pages181-197
Number of pages17
ISBN (Print)1-4020-3662-0
Publication statusPublished - 2005
EventNATO Advances Research Workshop on Ionic Soft Matter - Modern Trends in Theory and Applications - Lviv
Duration: 14 Apr 200417 Apr 2004

Conference

ConferenceNATO Advances Research Workshop on Ionic Soft Matter - Modern Trends in Theory and Applications
CityLviv
Period14/04/0417/04/04

Keywords / Materials (for Non-textual outputs)

  • criticality
  • ionic fluids
  • long-range interactions
  • computer simulations
  • RESTRICTED PRIMITIVE MODEL
  • LONG-RANGE INTERACTIONS
  • MONTE-CARLO SIMULATIONS
  • CHARGED HARD-SPHERE
  • CRITICAL-BEHAVIOR
  • HEAT-CAPACITY
  • IONIC FLUIDS
  • CRITICAL EXPONENTS
  • RENORMALIZATION GROUP
  • DIPOLAR INTERACTIONS

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