Issue
EPL
Volume 82, Number 5, June 2008
Article Number 50006
Number of page(s) 6
Section General
DOI http://dx.doi.org/10.1209/0295-5075/82/50006
Published online 29 May 2008
EPL, 82 (2008) 50006
DOI: 10.1209/0295-5075/82/50006

Giant enhancement of activation rate and its corresponding stochastic giant resonance

Jing-hui Li

Faculty of Science, Ningbo University - P. O. Box 58, Ningbo 315211, China

lijinghui@nbu.edu.cn

received 17 November 2007; accepted in final form 8 April 2008; published June 2008
published online 29 May 2008

Abstract
A new phenomenon for the activation rate is found, for which the activation rate can be hugely increased by increasing the positive value of the three-state noise. We call it the phenomenon of "giant enhancement of activation rate". In addition, a new kind of phenomenon of stochastic resonance is found, for which the response of the system to the input signal can be hugely intensified by the presence of the phenomenon of "giant enhancement of activation rate".

PACS
05.40.-a - Fluctuation phenomena, random processes, noise, and Brownian motion.
02.50.-r - Probability theory, stochastic processes, and statistics.

© EPLA 2008