Self-localized excitations in 2D lattices

Self-localized excitations in 2D lattices

We study the self-localization of one polaron-like excitation in a 2D harmonic lattice. We recognize and variationally estimate the values of the ruling parameters, for which localization occurs, both in the continuum limit and in the more realistic discrete case. We eventually account for the width...

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Bibliographic Details
Published in:Physics letters. A Vol. 205; no. 5; pp. 407 - 411
Main Authors: Angilella, G.G.N., Piccitto, G., Pucci, R., Siringo, F.
Format: Journal Article
Language:English
Published: Elsevier B.V 25-09-1995
Subjects:
2D lattices
Polarons
2D lattices
Polarons
Online Access:Get full text
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Summary:We study the self-localization of one polaron-like excitation in a 2D harmonic lattice. We recognize and variationally estimate the values of the ruling parameters, for which localization occurs, both in the continuum limit and in the more realistic discrete case. We eventually account for the width of such an excitation in the lattice.
ISSN:0375-9601
1873-2429
DOI:10.1016/0375-9601(95)00579-R