Moritz Thümler, Shesha G. M. Srinivas, Malte Schröder, Marc Timme
{"title":"复合仓本模型中弱耦合的同步性","authors":"Moritz Thümler, Shesha G. M. Srinivas, Malte Schröder, Marc Timme","doi":"arxiv-2404.19637","DOIUrl":null,"url":null,"abstract":"We present the finite-size Kuramoto model analytically continued from real to\ncomplex variables and analyze its collective dynamics. For strong coupling,\nsynchrony appears through locked states that constitute attractors, as for the\nreal-variable system. However, synchrony persists in the form of\n\\textit{complex locked states} for coupling strengths $K$ below the transition\n$K^{(\\text{pl})}$ to classical \\textit{phase locking}. Stable complex locked\nstates indicate a locked sub-population of zero mean frequency in the\nreal-variable model and their imaginary parts help identifying which units\ncomprise that sub-population. We uncover a second transition at\n$K'<K^{(\\text{pl})}$ below which complex locked states become linearly unstable\nyet still exist for arbitrarily small coupling strengths.","PeriodicalId":501305,"journal":{"name":"arXiv - PHYS - Adaptation and Self-Organizing Systems","volume":"26 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synchrony for weak coupling in the complexified Kuramoto model\",\"authors\":\"Moritz Thümler, Shesha G. M. Srinivas, Malte Schröder, Marc Timme\",\"doi\":\"arxiv-2404.19637\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We present the finite-size Kuramoto model analytically continued from real to\\ncomplex variables and analyze its collective dynamics. For strong coupling,\\nsynchrony appears through locked states that constitute attractors, as for the\\nreal-variable system. However, synchrony persists in the form of\\n\\\\textit{complex locked states} for coupling strengths $K$ below the transition\\n$K^{(\\\\text{pl})}$ to classical \\\\textit{phase locking}. Stable complex locked\\nstates indicate a locked sub-population of zero mean frequency in the\\nreal-variable model and their imaginary parts help identifying which units\\ncomprise that sub-population. We uncover a second transition at\\n$K'<K^{(\\\\text{pl})}$ below which complex locked states become linearly unstable\\nyet still exist for arbitrarily small coupling strengths.\",\"PeriodicalId\":501305,\"journal\":{\"name\":\"arXiv - PHYS - Adaptation and Self-Organizing Systems\",\"volume\":\"26 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-04-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv - PHYS - Adaptation and Self-Organizing Systems\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/arxiv-2404.19637\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - Adaptation and Self-Organizing Systems","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2404.19637","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Synchrony for weak coupling in the complexified Kuramoto model
We present the finite-size Kuramoto model analytically continued from real to
complex variables and analyze its collective dynamics. For strong coupling,
synchrony appears through locked states that constitute attractors, as for the
real-variable system. However, synchrony persists in the form of
\textit{complex locked states} for coupling strengths $K$ below the transition
$K^{(\text{pl})}$ to classical \textit{phase locking}. Stable complex locked
states indicate a locked sub-population of zero mean frequency in the
real-variable model and their imaginary parts help identifying which units
comprise that sub-population. We uncover a second transition at
$K'