Low-frequency dispersion of phonons in one-dimensional chains

Benjamin T. Moy, Jens Koch, Anupam Garg

Research output: Contribution to journalArticle

Abstract

The wave velocity of long-wavelength acoustic phonons is found in one-dimensional crystals with an arbitrary basis by an elementary argument founded upon the equality of kinetic and potential energies in a linear wave. This argument also extends to quasiperiodic crystals such as those based on the Fibonacci sequence. Inspired by recent experiments, these ideas are then applied to an artificial quasicrystalline transmission line made by coupling electromagnetic cavities in a Fibonacci sequence.

Original languageEnglish (US)
Article number035801
JournalEuropean Journal of Physics
Volume41
Issue number3
DOIs
StatePublished - May 2020

Keywords

  • Fibnacci sequence
  • phonons
  • quasicrystals
  • resonant cavities
  • sound velocity

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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