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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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Official URL: http://www.iop.org/EJ/abstract/0022-3719/6/21/004

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
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.ernet.in/id/eprint/23014

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