title: Dynamical origin for the occurrence of asynchronous hyperchaos and chaos via blowout bifurcations.
abstract: We investigate the dynamical origin for the occurrence of asynchronous hyperchaos and chaos via blowout bifurcations in coupled chaotic systems. An asynchronous hyperchaotic or chaotic attractor with a positive or negative second Lyapunov exponent appears through a blowout bifurcation. It is found that the sign of the second Lyapunov exponent of the newly born asynchronous attractor, exhibiting on-off intermittency, is determined through competition between its laminar and bursting components. When the "strength" (i.e., a weighted second Lyapunov exponent) of the bursting component is larger (smaller) than that of the laminar component, an asynchronous hyperchaotic (chaotic) attractor appears.
authors.affiliation: Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742, USA. sykim@kangwon.ac.kr
authors.forename: Sang-Yoon
authors.initials: SY
authors.lastname: Kim
authors.forename: Woochang
authors.initials: W
authors.lastname: Lim
authors.forename: Edward
authors.initials: E
authors.lastname: Ott
authors.forename: Brian
authors.initials: B
authors.lastname: Hunt