Phys. Rev. A 70, 022512 (2004) [12 pages]Short-range corrections to the correlation holeReceived 6 February 2004; revised 2 April 2004; published 24 August 2004 We present a model for the correlation hole to partially correct the errors present in short-range correlation when the hole is expanded in a one-particle basis set. Results for several two-electron test systems are presented and discussed. In general, the short-range correlation hole model improves the total energy substantially, reaching true chemical accuracy of one milliHartree with a modest basis set. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.70.022512
DOI:
10.1103/PhysRevA.70.022512
PACS:
31.15.Ar
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