title: Phase synchronization of a pair of spiral waves.
abstract: The interaction of a pair of spiral waves with different independent rotation frequencies is studied. In a very large frequency mismatch searching region, we observe three different pattern formation phenomena: (a) phase-synchronization-induced invasion under a relatively small frequency mismatch, i.e., the spiral wave with slower frequency (longer period) is swept away by a traveling wave, which is induced and phase synchronized by the faster spiral wave; (b) the coexistence of two spiral waves at sufficiently large parameter mismatch; and (c) an intermediate state, a non-phase-synchronous invasion, that is, similarly the slower spiral wave is swept by an approximate planar wave, whose frequency, however, is intermediate between those of the faster and slower waves. A point-source model is studied to analyze all these phenomena in a unified way.
authors.affiliation: Temasek Laboratories, National University of Singapore, 117508 Singapore. mzhan@chem.utoronto.ca
authors.forename: Meng
authors.initials: M
authors.lastname: Zhan
authors.forename: Xingang
authors.initials: X
authors.lastname: Wang
authors.forename: Xiaofeng
authors.initials: X
authors.lastname: Gong
authors.forename: C-H
authors.initials: CH
authors.lastname: Lai