Observation of Saturation of Fidelity Decay with an Atom Interferometer
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CitationWu, Saijun, Alexey Tonyushkin, and Mara G. Prentiss. 2009. Observation of saturation of fidelity decay with an atom interferometer. Physical Review Letters 103(34101).
AbstractWe use an atom interferometer to investigate the dynamics of matter waves in a periodically pulsed optical standing wave: an atom optics realization of the quantum kicked rotor that exhibits chaotic classical dynamics. We experimentally show that a measure of the coherence between the interferometer diffraction orders can revive after a quick initial loss, and can approach a finite asymptote as the number of kicks increases. This observation demonstrates that quantum fidelity of a classically chaotic system can survive strong perturbations over long times without decay.
Citable link to this pagehttp://nrs.harvard.edu/urn-3:HUL.InstRepos:10591648
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