中国物理B ›› 2019, Vol. 28 ›› Issue (1): 10502-010502.doi: 10.1088/1674-1056/28/1/010502

• SPECIAL TOPIC—Recent advances in thermoelectric materials and devices • 上一篇    下一篇

Attractors with controllable basin sizes from cooperation of contracting and expanding dynamics in pulse-coupled oscillators

Hai-Lin Zou(邹海林) Zi-Chen Deng(邓子辰)   

  1. School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University, Xi'an 710072, China
  • 收稿日期:2018-09-04 修回日期:2018-10-22 出版日期:2019-01-05 发布日期:2019-01-05
  • 通讯作者: Hai-Lin Zou E-mail:zouhailin@nwpu.edu.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11502200 and 91648101) and the Fundamental Research Funds for the Central Universities, China (Grant No. 3102018zy012).

Attractors with controllable basin sizes from cooperation of contracting and expanding dynamics in pulse-coupled oscillators

Hai-Lin Zou(邹海林) Zi-Chen Deng(邓子辰)   

  1. School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University, Xi'an 710072, China
  • Received:2018-09-04 Revised:2018-10-22 Online:2019-01-05 Published:2019-01-05
  • Contact: Hai-Lin Zou E-mail:zouhailin@nwpu.edu.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11502200 and 91648101) and the Fundamental Research Funds for the Central Universities, China (Grant No. 3102018zy012).

摘要:

Unstable attractors are a novel type of attractor with local unstable dynamics, but with positive measures of basins. Here, we introduce local contracting dynamics by slightly modifying the function which mediates the interactions among the oscillators. Thus, the property of unstable attractors can be controlled through the cooperation of expanding and contracting dynamics. We demonstrate that one certain type of unstable attractor is successfully controlled through this simple modification. Specifically, the staying time for unstable attractors can be prolonged, and we can even turn the unstable attractors into stable attractors with predictable basin sizes. As an application, we demonstrate how to realize the switching dynamics that is only sensitive to the finite size perturbations.

关键词: unstable attractors, switching dynamics, pulse-coupled oscillators

Abstract:

Unstable attractors are a novel type of attractor with local unstable dynamics, but with positive measures of basins. Here, we introduce local contracting dynamics by slightly modifying the function which mediates the interactions among the oscillators. Thus, the property of unstable attractors can be controlled through the cooperation of expanding and contracting dynamics. We demonstrate that one certain type of unstable attractor is successfully controlled through this simple modification. Specifically, the staying time for unstable attractors can be prolonged, and we can even turn the unstable attractors into stable attractors with predictable basin sizes. As an application, we demonstrate how to realize the switching dynamics that is only sensitive to the finite size perturbations.

Key words: unstable attractors, switching dynamics, pulse-coupled oscillators

中图分类号:  (Nonlinear dynamics and chaos)

  • 05.45.-a
05.45.Xt (Synchronization; coupled oscillators) 87.19.lj (Neuronal network dynamics)