Volume 71, Number 6, September 2005
|Page(s)||893 - 899|
|Published online||17 August 2005|
Chaotic dynamics in superconducting nanocircuits
NEST-INFM and Scuola Normale Superiore () - Piazza dei Cavalieri 7 I-56126 Pisa, Italy
2 Center for Nonlinear and Complex Systems, Università degli Studi dell'Insubria and INFM - via Valleggio 11, 22100 Como, Italy
Accepted: 21 July 2005
The quantum kicked rotator can be realized in a periodically driven superconducting nanocircuit. A study of the fidelity allows the experimental investigation of exponential instability of quantum motion inside the Ehrenfest time scale, chaotic diffusion and quantum dynamical localization. The role of noise and the experimental setup to measure the fidelity is discussed as well.
PACS: 05.45.Mt – Quantum chaos; semiclassical methods / 74.50.+r – Tunneling phenomena; point contacts, weak links, Josephson effects / 03.65.Yz – Decoherence; open systems; quantum statistical methods
© EDP Sciences, 2005
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