title: Chaos without nonlinear dynamics.
abstract: A linear, second-order filter driven by randomly polarized pulses is shown to generate a waveform that is chaotic under time reversal. That is, the filter output exhibits determinism and a positive Lyapunov exponent when viewed backward in time. The filter is demonstrated experimentally using a passive electronic circuit, and the resulting waveform exhibits a Lorenz-like butterfly structure. This phenomenon suggests that chaos may be connected to physical theories whose underlying framework is not that of a traditional deterministic nonlinear dynamical system.
authors.affiliation: U.S. Army RDECOM, AMSRD-AMR-WS-ST, Redstone Arsenal, Alabama 35898, USA.
authors.forename: Ned J
authors.initials: NJ
authors.lastname: Corron
authors.forename: Scott T
authors.initials: ST
authors.lastname: Hayes
authors.forename: Shawn D
authors.initials: SD
authors.lastname: Pethel
authors.forename: Jonathan N
authors.initials: JN
authors.lastname: Blakely