Thermal resonance in signal transmission - art. no. 066113

We use temperature tuning to control signal propagation in simple one-dimen sional arrays of masses connected by hard anharmonic springs and with no lo cal potentials. In our numerical model a sustained signal is applied at one site of a chain immersed in a thermal environment and the signal-to-noise ratio is measured at each oscillator. We show that raising the temperature can lead to enhanced signal propagation along the chain, resulting in therm al resonance effects akin to the resonance observed in arrays of bistable s ystems.