Enhancement of stochastic resonance in distributed systems due to a selective coupling

被引：34

作者：

von Haeften, B

Deza, R

Wio, HS

机构：

[1] Univ Mar del Plata, Dept Fis, Fac Ciencias Exactas & Nat, RA-7600 Mar Del Plata, Argentina

[2] Comis Nacl Energia Atom, Ctr Atom Bariloche, Grp Fis Estadist, RA-8400 Bariloche, Rio Negro, Argentina

[3] Comis Nacl Energia Atom, Inst Balseiro, RA-8400 Bariloche, Rio Negro, Argentina

[4] UNC, Inst Balseiro, RA-8400 Bariloche, Rio Negro, Argentina

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.84.404

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Recent massive numerical simulations have shown that the response of a "stochastic resonator" is enhanced as a consequence of spatial coupling. Similar results have been analytically obtained in a reaction-diffusion model, using nonequilibrium potential techniques. We now consider a field dependent diffusivity and show that the selectivity of the coupling is more efficient for achieving stochastic-resonance enhancement than its overall value in the constant-diffusivity case.

引用

页码：404 / 407

页数：4

共 33 条

[21] Stochastic resonant media: Signal-to-noise ratio for the activator-inhibitor system through a quasivariational approach [J].