Display Settings:


Send to:

Choose Destination
See comment in PubMed Commons below
J Chem Phys. 2004 Feb 1;120(5):2105-9.

Current-dependent extension of the Perdew-Burke-Ernzerhof exchange-correlation functional.

Author information

  • 1Department of Chemistry, Rice University, Houston, Texas 77005, USA.


The probability current density is used in addition to the electron density and its gradient as a variable in the construction of an exchange-correlation functional. Starting from the Perdew-Burke-Ernzerhof generalized gradient approximation, we employ exact conditions to build a nonempirical exchange functional. Matching the correlation functional to that for exchange yields a current-dependent approximation for correlation. The resulting functional is given in a simple closed form. Application of this approximation to open shell atoms eliminates the artificial level splitting of formally degenerate states observed with generalized gradient approximations.

Copyright 2004 American Institute of Physics

PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Icon for American Institute of Physics
    Loading ...
    Write to the Help Desk