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Gradient Echo Quantum Memory in Warm Atomic Vapor
Published on: November 11, 2013
Time reversal of Bose-Einstein condensates.
J Martin1, B Georgeot, D L Shepelyansky
1Laboratoire de Physique Théorique, Université de Toulouse III, CNRS, 31062 Toulouse, France.
Physical Review Letters
|September 4, 2008
Summary
We studied time reversibility in Bose-Einstein condensates (BEC) within kicked optical lattices. Quantum chaos surprisingly restores time reversal, even inverting dynamics from explosion to collapse.
Area of Science:
- Quantum physics
- Atomic physics
- Nonlinear dynamics
Background:
- Bose-Einstein condensates (BEC) exhibit complex dynamics in optical lattices.
- Understanding time reversibility is crucial for controlling quantum systems.
Purpose of the Study:
- Investigate the time reversibility of BEC in kicked optical lattices.
- Explore the influence of quantum chaos and atom interactions on time reversal.
Main Methods:
- Utilized the Gross-Pitaevskii equation for theoretical modeling.
- Simulated dynamics in kicked optical lattice potentials.
Main Results:
- Demonstrated inversion of dynamics from explosion to collapse under quantum chaos.
- Showed decreasing time reversal accuracy with increased atom interactions.
- Observed restoration of time reversibility due to quantum chaos.
Conclusions:
- Quantum chaos can restore time reversibility in BEC, overcoming interaction-induced loss of this property.
- The findings offer testable predictions for current experimental setups.
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