Europhysics Letters (EPL)

A modified coupled-cluster–based investigation of delocalization in tight-binding Hamiltonians

Arnaud Boullanger, Vincent Robert

Published Feb 10, 2005• 0 citations

Abstract

The nature of delocalization in a 1D system ruled by a tight-binding Hamiltonian is investigated. Using a local evaluation of the ground-state energy, it is shown that the range of the delocalization effects is rather limited. The method is applied to 1/2- and 1/4-filled systems.

DOI: 10.1209/epl/i2004-10428-6

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