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Zeitschrift für Physik B Condensed Matter

, Volume 78, Issue 2, pp 265–269 | Cite as

Solitons in a molecular chain with impurities

  • Lj. Ristovski
  • D. Todorović
  • G. Davidović
  • B. Stojković
Article

Abstract

The propagation of Davydov's soliton in the molecular chain with an impurity has been investigated. The numerical analysis demonstrates that the presence of the impurity leads to the decreasing of the soliton velocity, as well as to the localization (pinning) of the excitation in a region of space close to the impurity or even to the reflection or destruction of the soliton. The analytical results which demonstrate that the influence of the impurity is equivalent to the existence of some localized external inhomogeneous field or friction force have been obtained also.

Keywords

Spectroscopy Reflection Neural Network State Physics Soliton 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Davydov, A.S.: Solitoni v molekuljarnih sistemah. Kiew: Naukova Dumka 1984Google Scholar
  2. 2.
    Davydov, A.S., Kislukha, N.I.: Phys. Status Solidi (b)59, 465 (1973)Google Scholar
  3. 3.
    Davydov, A.S., Eremko, A.A.: TMF43, 367 (1980)Google Scholar
  4. 4.
    Davydov, A.S.: UFN138, 603 (1982)Google Scholar

Copyright information

© Springer-Verlag 1990

Authors and Affiliations

  • Lj. Ristovski
    • 1
  • D. Todorović
    • 2
  • G. Davidović
    • 1
  • B. Stojković
    • 1
  1. 1.Faculty of PhysicsUniversity of BelgradeBelgradeYugoslavia
  2. 2.Faculty of Natural SciencesUniversity of KragujevacKragujevacYugoslavia

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