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Mechanism and Lineshapes of Sub-Fourier Resonances

Hans Lignier·Jean Claude Garreau·Pascal Szriftgiser·Dominique Delande
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Abstract

Subtle internal interference effects allow quantum-chaotic systems to display "sub-Fourier" resonances, i.e. to distinguish two neighboring driving frequencies in a time shorter than the inverse of the difference of the two frequencies. We report experiments on the atomic version of the kicked rotor showing the unusual properties of the sub-Fourier resonances, and develop a theoretical approach (based on the Floquet theorem) explaining these properties, and correctly predicting the widths and lineshapes.

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Hans Lignier, Jean Claude Garreau, Pascal Szriftgiser, Dominique Delande. 2004-01-24. Mechanism and Lineshapes of Sub-Fourier Resonances. https://arxiv.org/abs/quant-ph/0401152

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