Systematic Field-Theory for the Hard-Core One-Component Plasma

Details Systematic Field-Theory for the Hard-Core One-Component Plasma Systematic Field-Theory for the Hard-Core One-Component Plasma

2002-01-14

arxiv.org/abs/cond-mat/0201227v1

Physics

Condensed Matter

Soft Condensed Matter

14 pages, 3 figures

Scientific paper

10.1140/epjd/e20020039

An accurate and systematic equation of state for the hard-core one-component plasma (HCOCP) is obtained. The result is based on the Hubbard-Schofield transformation which yields the field-theoretical Hamiltonian, with coefficients expressed in terms of equilibrium correlation functions of the reference hard-core fluid. Explicit calculations were performed using the Gaussian approximation for the effective Hamiltonian and known thermodynamic and structural properties of the reference hard-core fluid. For small values of the plasma parameter G and packing fraction the Debye-Huckel result is recovered, while for G>>1, the excess free energy F_ex and internal U_{ex} energy depend linearly on G. The obtained expression for U_ex is in a good agreement with the available Monte Carlo data for the HCOCP. We also analyse the validity of the widely used approximation, which represents the free energy as a sum of the hard-core and electrostatic part.

Affiliated with

Also associated with

No associations

Rating

Systematic Field-Theory for the Hard-Core One-Component Plasma does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Systematic Field-Theory for the Hard-Core One-Component Plasma, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Systematic Field-Theory for the Hard-Core One-Component Plasma will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-553781