MURPHYS-HSFS-2014 - 7th International Workshop on Multi-Rate Processes & Hysteresis, 2nd International Workshop on Hysteresis and Slow-Fast Systems, April 7-11, 2014 - Abstract

Dimian, Mihai

Noise-assisted phenomena in hysteretic systems

Noise and hysteresis are ubiquitous phenomena in science and engineering playing an increasingly important role in research and technological developments. While it is jeopardizing the future of several technologies, such as magnetic data storage, noise may also contribute to novel paradigms used to overcome current limitations, such as heat assisted magnetic recording employed to achieve higher data storage densities. The purpose of this talk is to present a unitary framework for studying noise-assisted phenomena in complex hysteretic systems and its implementation in an open-access academic software. Various differential, integral, and algebraic models of hysteresis are considered in an arbitrary colored noise environment and both disruptive and constructive effects of noise are analyzed. The emphasis is placed on thermal relaxations, memory losses, noise induced amplifications and stochastic resonances. [1] G. Bertotti and I. Mayergoyz (eds.), Science of Hysteresis, Elsevier, New York (2006). [2] M. Dimian, P. Andrei, Noise-driven phenomena in hysteretic systems, Springer, New York (2014) [3] HysterSoft, User Guide v. 1.8 [online http://www.eng.fsu.edu/ms/HysterSoft].