Self-trapping properties and recurrence phenomena in a modified discrete non-linear Schrodinger equation

G. Kalosakas, G. P. Tsironis, E. N. Economou

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

We study the properties of a modified discrete non-linear Schrodinger equation (MDNLS) that arises from the coupling of an excitation to an acoustic chain. We find exact results for self-trapping in chains of two and three sites and approximate results for longer chains. We also study possible recurrence phenomena in the equation and compare our findings with those of the standard DNLS as well as the integrable DNLS. We find that dynamics in MDNLS becomes more rapidly irregular compared to the other two equations.

Original languageEnglish
Article number006
Pages (from-to)7847-7856
Number of pages10
JournalJournal of Physics: Condensed Matter
Volume6
Issue number39
DOIs
Publication statusPublished - Dec 1 1994

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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