ANHARMONIC VIBRATIONS IN ORDERED AND DISORDERED ONE- AND TWO-DIMENSIONAL SYSTEMS

Roch Bourbonnais and Roger Maynard
Additional contact information
Roch Bourbonnais: Centre de Recherche sur les Très Basses Températures, Centre National de la Recherche Scientifique and Université Joseph Fourier-Grenoble I, B.P. 166X, 38042 Grenoble CEDEX, France
Roger Maynard: Centre de Recherche sur les Très Basses Températures, Centre National de la Recherche Scientifique and Université Joseph Fourier-Grenoble I, B.P. 166X, 38042 Grenoble CEDEX, France

International Journal of Modern Physics C (IJMPC), 1990, vol. 01, issue 02n03, 233-258

Abstract: We present extensive results of computer simulations on vibrations in one- and two-dimensional lattices with quartic anharmonicity. The existence of localized mode in ordered lattice is confirmed but the long term stability is questionable. Rather our results indicate an ergodic behavior at large times when several modes are present. Concerning disordered systems we have found that anharmonicity leads to a surprising new phenomenon of anomalous diffusion and thus to the possibility of anharmonically induced transport.

Keywords: Numerical Simulation; Vibrations; Disorder; Localization; Anharmonicity; Soliton (search for similar items in EconPapers)
Date: 1990
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.worldscientific.com/doi/abs/10.1142/S012918319000013X
Access to full text is restricted to subscribers

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:wsi:ijmpcx:v:01:y:1990:i:02n03:n:s012918319000013x

Ordering information: This journal article can be ordered from

DOI: 10.1142/S012918319000013X

Access Statistics for this article

International Journal of Modern Physics C (IJMPC) is currently edited by H. J. Herrmann

More articles in International Journal of Modern Physics C (IJMPC) from World Scientific Publishing Co. Pte. Ltd.
Bibliographic data for series maintained by Tai Tone Lim ().