2002/07/17 by Pascal Szriftgiser, J. Ringot, Jean Ringot +2 · 5 citations
Physics and Astronomy · #Chaos control and synchronization #Quantum chaos and dynamical systems #Quantum optics and atomic interactions #quant-ph
paper · pdf · doi:10.1103/physrevlett.89.224101
published as Physical Review Letters 89, 224101 (2002) · 4 pages, RevTeX 4, submitted to PRL
arxiv created 2002/07/17 · openalex publication_date 2002/11/07 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We experimentally show that the response of a quantum-chaotic system can display resonance lines sharper than the inverse of the excitation duration. This allows us to discriminate two neighboring frequencies with a resolution nearly 40 times better than the limit set by the Fourier inequality. Furthermore, numerical studies indicate that there is no limit, but the loss of signal, to this resolution, opening ways for the development of sub-Fourier quantum-chaotic signal processing.