Controlling nonlinear stochastic resonance by harmonic mixing
نویسندگان
چکیده
منابع مشابه
Controlling nonlinear stochastic resonance by harmonic mixing
We investigate the potential for controlling the effect of nonlinear Stochastic Resonance (SR) by use of harmonic mixing signals for an overdamped Brownian dynamics in a symmetric double well potential. The periodic forcing for harmonic mixing consists of a first signal with a basic frequency O and a second, superimposed signal oscillating at twice the basic frequency 2O: By variation of the ph...
متن کاملControlling Stochastic Resonance
Luca Gammaitoni,1 Markus Löcher,4 Adi Bulsara,2 Peter Hänggi,3 Joseph Neff,4 Kurt Wiesenfeld,4 William Ditto,4 and Mario E. Inchiosa2 1Dipartimento di Fisica, Universitá di Perugia and Instituto Nazionale di Fisica Nucleare, Sezione di Perugia, I-06100 Perugia, Italy 2Space and Naval Warfare Systems Center San Diego, Code D-364, San Diego, California 92152-5001 3Institut für Physik, Universität...
متن کاملTheory of controlling stochastic resonance
The concept of controlling stochastic resonance has been recently introduced [L. Gammaitoni et al., Phys. Rev. Lett. 82, 4574 (1999)] to enhance or suppress the spectral response to threshold-crossing events triggered by a time-periodic signal in background noise. Here, we develop a general theoretical framework, based on a rate equation approach. This generic two-state theory captures the esse...
متن کاملNonlinear quantum stochastic resonance.
We investigate quantum stochastic resonance ~QSR! in the periodically driven spin-boson system with Ohmic dissipation. For the special case a5 1 2 of the Ohmic coupling strength we present exact QSR results. For arbitrary Ohmic coupling, the amplitude and the phase of the nonlinear response function vs temperature are studied in a vast regime of temperatures and frequencies. It encompasses a di...
متن کاملStochastic resonance in bistable systems driven by harmonic noise.
We study stochastic resonance in a bistable system which is excited simultaneously by white and harmonic noise which we understand as the signal. In our case the spectral line of the signal has a nite width as it occurs in many real situations. Using techniques of cumulant analysis as well as computer simulations we nd that the eeect of stochastic resonance is preserved in the case of harmonic ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physica A: Statistical Mechanics and its Applications
سال: 2005
ISSN: 0378-4371
DOI: 10.1016/j.physa.2004.12.011