Correlated Random Tight-Binding System with One Periodic State: Its Time Evolution and the Effects of an Added Nonlinearity

Autor:	R. Riklund, B. Lindquist
Rok vydání:	1998
Předmět:	Physics Condensed matter physics Time evolution State (functional analysis) Condensed Matter Physics Electronic Optical and Magnetic Materials Schrödinger equation Nonlinear system symbols.namesake Transformation (function) Tight binding symbols Statistical physics Soliton Constant (mathematics)
Zdroj:	physica status solidi (b). 209:353-362
ISSN:	1521-3951 0370-1972
DOI:	10.1002/(sici)1521-3951(199810)209:2<353::aid-pssb353>3.0.co;2-t
Popis:	We study a one-dimensional tight-binding system with constant on-site potential and off-diagonal hopping integrals t binary valued, and distributed as correlated random dimers. An explicit transformation from the system with constant t reveals that not only all states are extended, but in addition one of the states is periodic. The transformation is valid also for the corresponding time-dependent system, even including a nonlinear term. An example of the time evolution of a soliton-like state is shown.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::24ee68a78184d3ae0f2d05a53981a7cd https://doi.org/10.1002/(sici)1521-3951(199810)209:2<353::aid-pssb353>3.0.co Zobrazit plný text záznamu Plný text