Josephson Oscillations and Self-Trapping of Superfluid Fermions in a Double-Well Potential
Authors: Peng Z., Dalfovo F.
Autors Affiliation: INO-CNR BEC Center and Dipartimento di Fisica, Università di Trento, 38123 , Povo, Italy
Abstract: 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.
Journal/Review: JOURNAL OF LOW TEMPERATURE PHYSICS
Volume: 177 (5-6) Pages from: 240 to: 256
More Information: We thank S. Stringari, L. P. Pitaevskii, A. Recati for fruitful discussions. P.Z is particularly indebted to R. G. Scott, whose computational expertise was of great help at the beginning of this work. Support of ERC, through the QGBE Grant, and of Provincia Autonoma di Trento is acknowledged.KeyWords: Josephson oscillation; Self-trapping; Fermi superfluids; Time-dependent BdG; DOI: 10.1007/s10909-014-1209-2Citations: 12data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2020-10-18References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here