Noise induced new quasi-period and periods switching

• Published in: arXiv.org
• Main Authors: Wu, Yuxuan, Jiao, Yuxing, Zhao, Yanzhen, Jia, Haojun, Xu, Liufang
• Format: Paper Journal Article
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 24.06.2021
• Subjects: Bifurcations; Circuits; Noise; Physics - Biological Physics
• ISSN: 2331-8422
• DOI: 10.48550/arxiv.2106.12918

We employ a typical genetic circuit model to explore how noise can influence the dynamic structure. With the increase of a key interactive parameter, the model will deterministically go through two bifurcations and three dynamic structure regions. We find that a new quasi-periodic component, which is not allowed by deterministic dynamics, will be generated by noise inducing in the first two regions, and this quasi-period will be more and more stable along with the noise increasing. Especially, in the second region, the quasi-period will compete with a stable limit cycle and perform a new transient rhythm. Furthermore, we ascertain the entropy production rate (EPR) and the heat dissipation rate (HDR), and discover a minimal value with elucidating theoretically. In the end, we unveil the mechanism of the quasi-periods forming, and show a practical biological instance. We expect that this work is helpful to solve some biological or ecological problems, such as genetic origin of periodical cicadas and population dynamics with fluctuation.