title: Noise-free logical stochastic resonance.
abstract: The phenomena of logical stochastic resonance (LSR) was demonstrated recently [Phys. Rev. Lett. 102, 104101 (2009)]: namely, when a bistable system is driven by two inputs it consistently yields a response mirroring a logic function of the two inputs in an optimal window of moderate noise. Here we examine the intriguing possibility of obtaining dynamical behavior equivalent to LSR in a noise-free bistable system, subjected only to periodic forcing, such as sinusoidal driving or rectangular pulse trains. We find that such a system, despite having no stochastic influence, also yields phenomena analogous to LSR, in an appropriate window of frequency and amplitude of the periodic forcing. The results are corroborated by circuit experiments.
authors.affiliation: Indian Institute of Technology Bombay, Powai, Mumbai, India.
authors.forename: Animesh
authors.initials: A
authors.lastname: Gupta
authors.forename: Aman
authors.initials: A
authors.lastname: Sohane
authors.forename: Vivek
authors.initials: V
authors.lastname: Kohar
authors.forename: K
authors.initials: K
authors.lastname: Murali
authors.forename: Sudeshna
authors.initials: S
authors.lastname: Sinha
mesh_terms: D000465:Algorithms; D003627:Data Interpretation, Statistical; D004581:Electronics; D004867:Equipment Design; D017711:Nonlinear Dynamics; D010825:Physics / Q000379:methods*; D013269:Stochastic Processes; D013997:Time Factors