Dephasingassisted macrospin transport Transport phenomena are ubiquitous in physics, and it is generally understood that the environmental disorder and noise deteriorates the transfer of excitations. There are however cases in which transport can be enhanced by fluctuations. In the present work we show, by means of micromagnetics simulations, that transport efficiency in a chain of classical macrospins can be greatly increased by an optimal level of dephasing noise. We demonstrate also the same effect in a simplified model, the dissipative Discrete Nonlinear Schrodinger equation subject to phase noise. Our results point towards the realisation of a large class of magnonics and spintronics devices, where disorder and noise can be used to enhance spindependent transport efficiency.

Binary signal transmission in nonlinear sensors: Stochastic resonance and human hand balance Many sensors exhibit nonlinear characteristics 1xe2x80x935 and are deployed in noisy environments 1xe2x80x937. In terms of device design and forming standards, this is a challenging area. However, it also presents opportunities for nonconventional signal processing methods based on stochastic resonance that have been shown to be of benefit for individual nonlinear sensors 1xe2x80x937, sensor arrays 3xe2x80x9310, sensor networks 3, 8, 11, and even portable devices for people with reduced sensory capacity 12xe2x80x9314. The most fascinating property of stochastic resonance is that nonlinear sensors connected in parallel or in a network yield improved performance over that achieved by using individual sensors 1xe2x80x9310. Studies in stochastic resonance have led to evidence of noiseenhanced signal transmission and processing in nonlinear sensors, and noise can be exploited in the design of engineered devices 2xe2x80x937, 10 and biological systems 1, 11xe2x80x9313. This paper studies noiseenhanced signal transmission and processing in nonlinear sensors and also exploits the positive role of noise in the design of engineered devices that enhance the sensitivity of hand movements.