title: Direct observation of dynamical bifurcation in a superfluid Josephson junction.
abstract: We report a direct observation of dynamical bifurcation between two plasma oscillation states of a superfluid Josephson junction. We excite the superfluid plasma resonance into a nonlinear regime by driving below the natural plasma frequency and observe a clear transition between two dynamical states. We also demonstrate bifurcation by changing the potential well with temperature variations.
authors.affiliation: The Rowland Institute at Harvard, Harvard University, Cambridge, Massachusetts 02142, USA.
authors.forename: Supradeep
authors.initials: S
authors.lastname: Narayana
authors.forename: Yuki
authors.initials: Y
authors.lastname: Sato