Effect of noise on the neutral direction of chaotic attractor

Ying-Cheng Lai, Zonghua Liu

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


A chaotic attractor from a deterministic flow must necessarily possess a neutral direction, as characterized by a null Lyapunov exponent. We show that for a wide class of chaotic attractors, particularly those having multiple scrolls in the phase space, the existence of the neutral direction can be extremely fragile in the sense that it is typically destroyed by noise of arbitrarily small amplitude. A universal scaling law quantifying the increase of the Lyapunov exponent with noise is obtained. A way to observe the scaling law in experiments is suggested. (C) 2004 American Institute of Physics.

Original languageEnglish
Pages (from-to)189-192
Number of pages4
Issue number1
Publication statusPublished - Mar 2004


  • synchronization
  • systems
  • model


Dive into the research topics of 'Effect of noise on the neutral direction of chaotic attractor'. Together they form a unique fingerprint.

Cite this