title: Amplitude-phase synchronization at the onset of permanent spatiotemporal chaos.
abstract: Amplitude and phase synchronization due to multiscale interactions in chaotic saddles at the onset of permanent spatiotemporal chaos is analyzed using the Fourier-Lyapunov representation. By computing the power-phase spectral entropy and the time-averaged power-phase spectra, we show that the laminar (bursty) states in the on-off spatiotemporal intermittency correspond, respectively, to the nonattracting coherent structures with higher (lower) degrees of amplitude-phase synchronization across spatial scales.
authors.affiliation: National Institute for Space Research (INPE) and World Institute for Space Environment Research (WISER), Post Office Box 515, São José dos Campos-SP 12227-010, Brazil. abraham.chian@gmail.com
authors.forename: Abraham C-L
authors.initials: AC
authors.lastname: Chian
authors.forename: Rodrigo A
authors.initials: RA
authors.lastname: Miranda
authors.forename: Erico L
authors.initials: EL
authors.lastname: Rempel
authors.forename: Yoshitaka
authors.initials: Y
authors.lastname: Saiki
authors.forename: Michio
authors.initials: M
authors.lastname: Yamada