Coherent potential approximation, averaged T-matrix approximation and Lloyd's model

Kumar, A Prasanna and Baskaran, G (1973) Coherent potential approximation, averaged T-matrix approximation and Lloyd's model. In: Journal of Physics C: Solid State Physics, 6 . pp. 399-401.

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Abstract

It is shown how the single-site coherent potential approximation and the averaged T-matrix approximation become exact in the calculation of the averaged single-particle Green function of the electron in the Anderson model when the site energy is distributed randomly with lorentzian distribution. Using these approximations, Lloyd's exact result is reproduced.

Item Type:	Journal Article
Publication:	Journal of Physics C: Solid State Physics
Publisher:	Institute of Physics
Additional Information:	Copy right of this article belongs to Institute of Physics.
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	10 Sep 2009 06:15
Last Modified:	19 Sep 2010 05:44
URI:	http://eprints.iisc.ac.in/id/eprint/23014

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