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Classical bifurcation at the transition from Rabi to Josephson dynamics
Tilman Zibold1, Eike Nicklas, Christian Gross
1Kirchhoff Institut für Physik, Universität Heidelberg, Im Neuenheimer Feld 227, D-69120, Germany.
Physical Review Letters
|January 15, 2011
Summary
We experimentally demonstrated the bosonic Josephson effect in a rubidium spinor Bose-Einstein condensate. This confirms theoretical predictions and advances quantum entanglement research.
Area of Science:
- Atomic, Molecular, and Optical Physics
- Quantum Mechanics
- Condensed Matter Physics
Background:
- The bosonic Josephson effect is a key phenomenon in quantum mechanics.
- Bose-Einstein condensates (BECs) provide a platform for studying quantum phenomena.
Purpose of the Study:
- To experimentally demonstrate the internal bosonic Josephson effect.
- To characterize the theoretically predicted π-phase modes.
- To confirm analytical predictions and reveal classical bifurcation.
Main Methods:
- Utilized a rubidium spinor Bose-Einstein condensate.
- Measured the full time dynamics in phase space.
- Quantitatively compared experimental results with analytical predictions.
Main Results:
- Successfully demonstrated the internal bosonic Josephson effect.
- Characterized the π-phase modes, confirming theoretical predictions.
- Observed a classical bifurcation in the system's dynamics.
Conclusions:
- The rubidium spinor BEC serves as a model system for exploring classical and quantum regimes.
- This work is a significant step towards investigating entanglement generation near critical points.
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