Experimental Evidence of Chaos from Memristors

Lucia Valentina Gambuzza, Luigi Fortuna, Mattia Frasca, Ella Gale

Research output: Contribution to journalArticle (Academic Journal)

18 Citations (Scopus)

Abstract

Until now, most memristor-based chaotic circuits proposed in the literature are based on mathematical models which assume ideal characteristics such as piecewise-linear or cubic nonlinearities. The idea, illustrated here and originating from the experimental approach for device characterization, is to realize a chaotic system exploiting the nonlinearity of only one memristor with a very simple experimental set-up using feedback. In this way, a simple circuit is obtained and chaos is experimentally observed and is confirmed by the calculation of the largest Lyapunov exponent. Numerical results using the Strukov model support the existence of robust chaos in our circuit. To our knowledge, this is the first experimental demonstration of chaos in a real memristor circuit and suggests that memristors are well placed for hardware encryption.

Original languageEnglish
Article number1550101
JournalInternational Journal of Bifurcation and Chaos
Volume25
Issue number8
DOIs
Publication statusPublished - 5 Jul 2015

Keywords

  • Chaos
  • memristor
  • nonlinear dynamics

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