Josephson Oscillations and Self-Trapping of Superfluid Fermions in a Double-Well Potential
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- Zou, P. & Dalfovo, F. J Low Temp Phys (2014) 177: 240. doi:10.1007/s10909-014-1209-2
We investigate the behaviour of a two-component Fermi superfluid in a double-well potential. We numerically solve the time dependent Bogoliubov-de Gennes equations and characterize the regimes of Josephson oscillations and self-trapping for different potential barriers and initial conditions. In the weak link limit the results agree with a two-mode model where the relative population and the phase difference between the two wells obey coupled nonlinear Josephson equations. A more complex dynamics is predicted for large amplitude oscillations and large tunneling.