title: Stabilization of multiarmed spiral waves by circularly polarized electric fields.
abstract: The influence of circularly polarized electric fields (CPEFs) on the stability of multiarmed spiral waves is investigated. It is shown that CPEFs can change the period of the multiarmed spirals. The average period is an important quantity of multiarmed spiral and it must be larger than a threshold for stable multiarmed spiral. After a counter-rotating CPEF with suitable amplitude and period is applied, the average period of the multiarmed spiral may increase, which stabilizes the multiarmed spiral.
authors.affiliation: Zhejiang Institute of Modern Physics and Department of Physics, Zhejiang University, Hangzhou 310027, China.
authors.forename: Ling-Yun
authors.initials: LY
authors.lastname: Deng
authors.forename: Hong
authors.initials: H
authors.lastname: Zhang
authors.forename: You-Quan
authors.initials: YQ
authors.lastname: Li