Volume 101, Number 3, February 2013
|Number of page(s)||6|
|Section||Physics of Gases, Plasmas and Electric Discharges|
|Published online||14 February 2013|
Effective pair potential for atoms in the Coulomb model of substance
1 Joint Institute for High Temperatures - Moscow, Russia
2 National Research University “MPEI” - Moscow, Russia
3 Eindhoven University of Technology - Eindhoven, The Netherlands, EU
4 Institut für Physik, Humboldt-Universität zu Berlin - Berlin, Germany, EU
Received: 15 November 2012
Accepted: 16 January 2013
An explicit expression for the pair short-range effective interaction potential of “atoms” is derived based on the model of “pure” matter. This model represents the equilibrium Coulomb system of interacting electrons and nuclei of the same type, using the adiabatic approximation for nuclei, the self-consistent Hartree-Fock approximation for the electronic subsystem, the “one-center” approximation to describe localized electronic states, and the perturbation theory with respect to the fluctuating field. It is shown that the found potential is completely defined by the inhomogeneous density and inhomogeneous density matrix of electronic states in the isolated “atom”.
PACS: 51.30.+i – Thermodynamic properties, equations of state / 71.10.Li – Excited states and pairing interactions in model systems / 31.15.-p – Calculations and mathematical techniques in atomic and molecular physics
© EPLA, 2013
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.