2004/01/24 by Hans Lignier, Jean Claude Garreau, Lignier, Hans +5
Physics and Astronomy · #Atomic Physics (physics.atom-ph) #Chaotic Dynamics (nlin.CD) #FOS: Physical sciences #Quantum Physics (quant-ph) #Soft Condensed Matter (cond-mat.soft) #cond-mat.soft #nlin.CD #physics.atom-ph #quant-ph
paper · pdf · doi:10.48550/arxiv.quant-ph/0401152
5 pages, 3 figures, submitted to PRL
arxiv created 2004/01/24 · arxiv updated 2009/12/01
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.