Classical Bifurcation at the Transition from Rabi to Josephson Dynamics
Tilman Zibold, Eike Nicklas, Christian Gross, Markus K. Oberthaler
DOI 10.1103/PhysRevLett.105.204101 · Physical Review Letters
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Abstract
We report on the experimental demonstration of the internal bosonic Josephson effect in a rubidium spinor Bose-Einstein condensate. The measurement of the full time dynamics in phase space allows the characterization of the theoretically predicted π-phase modes and quantitatively confirms analytical predictions, revealing a classical bifurcation. Our results suggest that this system is a model system which can be tuned from classical to the quantum regime and thus is an important step towards the experimental investigation of entanglement generation close to critical points.
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