Antiresonance in switched systems with only unstable modes

Maurizio Porfiri, Russell Jeter, Igor Belykh

Research output: Contribution to journalArticlepeer-review


Antiresonance is a key property of dynamical systems that leads to the suppression of oscillations at select frequencies. We present the surprising example of a switched system that alternates between unstable modes, but exhibits antiresonance for a wide range of switching frequencies. We elucidate the stabilization mechanism and characterize the range of antiresonant frequencies for periodic and stochastic switching. The demonstration of antiresonance in a minimalistic variation of the Stuart-Landau model opens the door for a new paradigm in the study and design of switched systems.

Original languageEnglish (US)
Article numberL022001
JournalPhysical Review Research
Issue number2
StatePublished - Apr 1 2021

ASJC Scopus subject areas

  • General Physics and Astronomy


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