title: Multidimensional quasiperiodic antiphase dynamics.
abstract: We study analytically the (N-1)-fold degenerate Hopf bifurcation at which N stationary modes with identical parameters become unstable in a model of a solid-state laser with intracavity second harmonic generation. We use the normal form method and exploit the symmetries of the problem. Up to N=3, stable periodic antiphased solutions emerge from the Hopf bifurcation. For N=4, stable quasiperiodic solutions arise from the degenerate Hopf bifurcation. For N>4, the quasiperiodic solutions may be unstable. Then chaotic itineracy is observed numerically close to the degenerate Hopf bifurcation.
authors.affiliation: Physics Faculty, St. Petersburg State University, 198904 St. Petersburg, Russia.
authors.forename: A G
authors.initials: AG
authors.lastname: Vladimirov
authors.forename: E A
authors.initials: EA
authors.lastname: Viktorov
authors.forename: P
authors.initials: P
authors.lastname: Mandel