 Localization of disordered harmonic chain with long-range correlationHiroaki S. Yamada Chaos, Solitons & Fractals, 2018, vol. 113, issue C, 178-185 Abstract: In the previous paper (Yamada, (2018)), we investigated localization properties of one-dimensional disordered electronic system with long-range correlation generated by modified Bernoulli (MB) map. In the present paper, we report localization properties of phonon in disordered harmonic chains generated by the MB map. Here we show that Lyapunov exponent becomes positive definite for almost all frequencies ω except ω=0, and the B−dependence changes to exponential decrease for B > 2, where B is a correlation parameter of the MB map. The distribution of the Lyapunov exponent of the phonon amplitude has a slow convergence, different from that of uncorrelated disordered systems obeying a normal central-limit theorem. Moreover, we calculate the phonon dynamics in the MB chains. We show that the time-dependence of spread in the phonon amplitude and energy wave packet changes from that in the disordered chain to that in the periodic one, as the correlation parameter B increases. Keywords: Phonon; Acoustic wave; Localization; Bernoulli map; Delocalization; Long-range; Correlation (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:113:y:2018:i:c:p:178-185 DOI: 10.1016/j.chaos.2018.06.003 Access Statistics for this article Chaos, Solitons & Fractals is currently edited by Stefano Boccaletti and Stelios Bekiros More articles in Chaos, Solitons & Fractals from Elsevier |
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