Choudhury, Pranab and Das, A N (2001) Small-to-large polaron crossover in one dimension using variational phonon-averaging techniques. International Journal of Modern Physics B, 15 (13). 1923-1937 . ISSN 0217-9792

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Abstract

The ground-state properties of polarons in a one-dimensional chain is studied analytically within the modified Lang-Firsov (MLF) transformation using various phonon-averaging techniques. The object of the work is to examine how the analytical approaches may be improved to give rise to the real picture of polaronic properties as predicted by extensive numerical studies. The results are compared with those obtained from numerical analyses using the density matrix renormalization group (DMRG) and other variational techniques. It is observed that our results agree well with the numerical results particularly in the low and intermediate range of phonon coupling.

Item Type:	Article
Uncontrolled Keywords:	Condensed Matter; Mathematical Physics
Subjects:	Physical Properties
Divisions:	UNSPECIFIED
Depositing User:	Mrs Chandana Patra
Date Deposited:	14 Feb 2012 11:26
Last Modified:	27 Mar 2016 13:24
URI:	http://cgcri.csircentral.net/id/eprint/842

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