Dynamics of noisy oscillator populations beyond the Ott-Antonsen Ansatz
- We develop an approach for the description of the dynamics of large populations of phase oscillators based on "circular cumulants" instead of the Kuramoto-Daido order parameters. In the thermodynamic limit, these variables yield a simple representation of the Ott-Antonsen invariant solution [E. Ott and T. M. Antonsen, Chaos 18, 037113 (2008)] and appear appropriate for constructing perturbation theory on top of the Ott-Antonsen ansatz. We employ this approach to study the impact of small intrinsic noise on the dynamics. As a result, a closed system of equations for the two leading cumulants, describing the dynamics of noisy ensembles, is derived. We exemplify the general theory by presenting the effect of noise on the Kuramoto system and on a chimera state in two symmetrically coupled populations.
| Author details: | Irina Tyulkina, Denis S. GoldobinORCiD, Lyudmila S. KlimenkoORCiD, Arkadij PikovskijORCiDGND |
|---|---|
| DOI: | https://doi.org/10.1103/PhysRevLett.120.264101 |
| ISSN: | 0031-9007 |
| ISSN: | 1079-7114 |
| Pubmed ID: | https://pubmed.ncbi.nlm.nih.gov/30004770 |
| Title of parent work (English): | Physical review letters |
| Publisher: | American Physical Society |
| Place of publishing: | College Park |
| Publication type: | Article |
| Language: | English |
| Date of first publication: | 2018/06/25 |
| Publication year: | 2018 |
| Release date: | 2021/11/19 |
| Volume: | 120 |
| Issue: | 26 |
| Number of pages: | 6 |
| Funding institution: | Russian Science FoundationRussian Science Foundation (RSF) [17-12-01534, 14-12-00090]; G-RISC [M-2018a-7] |
| Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
| DDC classification: | 5 Naturwissenschaften und Mathematik / 53 Physik |
| Peer review: | Referiert |
| Publishing method: | Open Access / Green Open-Access |
