000056061 001__ 56061 000056061 005__ 20200221144309.0 000056061 0247_ $$2doi$$a10.1038/srep24915 000056061 0248_ $$2sideral$$a94964 000056061 037__ $$aART-2016-94964 000056061 041__ $$aeng 000056061 100__ $$aGambuzza, L.V. 000056061 245__ $$aAmplitude dynamics favors synchronization in complex networks 000056061 260__ $$c2016 000056061 5060_ $$aAccess copy available to the general public$$fUnrestricted 000056061 5203_ $$aIn this paper we study phase synchronization in random complex networks of coupled periodic oscillators. In particular, we show that, when amplitude dynamics is not negligible, phase synchronization may be enhanced. To illustrate this, we compare the behavior of heterogeneous units with both amplitude and phase dynamics and pure (Kuramoto) phase oscillators. We find that in small network motifs the behavior crucially depends on the topology and on the node frequency distribution. Surprisingly, the microscopic structures for which the amplitude dynamics improves synchronization are those that are statistically more abundant in random complex networks. Thus, amplitude dynamics leads to a general lowering of the synchronization threshold in arbitrary random topologies. Finally, we show that this synchronization enhancement is generic of oscillators close to Hopf bifurcations. To this aim we consider coupled FitzHugh-Nagumo units modeling neuron dynamics. 000056061 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/FIS2014-55867-P$$9info:eu-repo/grantAgreement/ES/MINECO/FIS2012-38266$$9info:eu-repo/grantAgreement/ES/DGA/E19 000056061 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/ 000056061 590__ $$a4.259$$b2016 000056061 591__ $$aMULTIDISCIPLINARY SCIENCES$$b10 / 63 = 0.159$$c2016$$dQ1$$eT1 000056061 592__ $$a1.691$$b2016 000056061 593__ $$aMultidisciplinary$$c2016$$dQ1 000056061 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000056061 700__ $$0(orcid)0000-0002-3484-6413$$aGómez-Gardeñes, J.$$uUniversidad de Zaragoza 000056061 700__ $$aFrasca, M. 000056061 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada 000056061 773__ $$g6 (2016), 24915[9pp]$$pSci. rep.$$tSCIENTIFIC REPORTS$$x2045-2322 000056061 8564_ $$s1088954$$uhttps://zaguan.unizar.es/record/56061/files/texto_completo.pdf$$yVersión publicada 000056061 8564_ $$s108093$$uhttps://zaguan.unizar.es/record/56061/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000056061 909CO $$ooai:zaguan.unizar.es:56061$$particulos$$pdriver 000056061 951__ $$a2020-02-21-13:36:19 000056061 980__ $$aARTICLE