Coherent and incoherent motion in a one-dimensional lattice

Authors
Palenberg, MA Silbey, RJ Pfluegl, W
Citation
Ma. Palenberg et al., Coherent and incoherent motion in a one-dimensional lattice, PHYS REV B, 62(6), 2000, pp. 3744-3750
Citations number
19
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
62
Issue
6
Year of publication
2000
Pages
3744 - 3750
Database
ISI
SICI code
0163-1829(20000801)62:6<3744:CAIMIA>2.0.ZU;2-W
Abstract
We discuss a generalization of the Haken-Strobl-Reineker model for the diff usion coefficient of a particle (or an excitation) in a one-dimensional lat tice. In the original treatment, the characteristic correlation time of the lattice vibrations is assumed to be the smallest time scale in the physica l problem. We weaken this requirement and allow for longer correlation time s. We discuss previous results in the context of our theory and present num erical examples.