期刊
PHYSICAL REVIEW E
卷 104, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevE.104.034204
关键词
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资金
- NNSF of China [12105117]
- Funda-mental Research Funds for the Central Universities [21621007]
The study finds that for signals with significant phase disorder, networks exhibit enhanced response at intermediate coupling strength, mainly dependent on signal intensity and capable of suppressing synchronization of units, leading to resonancelike response. This phenomenon is robust to unit bistability, initial phase distribution, and signal waveform, demonstrating the potential benefit of phase disorder on signal amplification in complex systems.
We study the maximum response of network-coupled bistable units to subthreshold signals focusing on the effect of phase disorder. We find that for signals with large levels of phase disorder, the network exhibits an enhanced response for intermediate coupling strength, while generating a damped response for low levels of phase disorder. We observe that the large phase-disorder-enhanced response depends mainly on the signal intensity but not on the signal frequency or the network topology. We show that a zero average activity of the units caused by large phase disorder plays a key role in the enhancement of the maximum response. With a detailed analysis, we demonstrate that large phase disorder can suppress the synchronization of the units, leading to the observed resonancelike response. Finally, we examine the robustness of this phenomenon to the unit bistability, the initial phase distribution, and various signal waveform. Our result demonstrates a potential benefit of phase disorder on signal amplification in complex systems.
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