Symmetry adaptation of correlated states in the valence bond basis

Ramasesha, S and Soos, ZG (1993) Symmetry adaptation of correlated states in the valence bond basis. In: Journal of Chemical Physics, The, 98 (5). pp. 4015-4022.

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Abstract

Symmetry?adapted linear combinations of valence?bond (VB) diagrams are constructed for arbitrary point groups and total spin S using diagrammatic VB methods. VB diagrams are related uniquely to invariant subspaces whose size reflects the number of group elements; their nonorthogonality leads to sparser matrices and is fully incorporated into a binary integer representation. Symmetry?adapated linear combinations of VB diagrams are constructed for the 1764 singlets of a half?filled cube of eight sites, the 2.8 million ??electron singlets of anthracene, and for illustrative S?0 systems.

Item Type:	Journal Article
Publication:	Journal of Chemical Physics, The
Publisher:	American Institute of Physics
Additional Information:	Copyright of this article belongs to American Institute of Physics.
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	11 Mar 2011 07:01
Last Modified:	24 Oct 2011 05:12
URI:	http://eprints.iisc.ac.in/id/eprint/35852

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