APS » PROLA » Phys. Rev. Lett. » Volume 90 » Issue 5
< Previous article | Next article >

Phys. Rev. Lett. 90, 054101 (2003) [4 pages]

Signatures of Quantum Stability in a Classically Chaotic System

Download: PDF (678 kB) or Buy this Article (Use Article Pack) Export: BibTeX or EndNote (RIS)

S. Schlunk1, M. B. d’Arcy1, S. A. Gardiner1, D. Cassettari1, R. M. Godun1, and G. S. Summy1,2
1Clarendon Laboratory, Department of Physics, University of Oxford, Parks Road, Oxford, OX1 3PU, United Kingdom
2Department of Physics, Oklahoma State University, Stillwater, Oklahoma 74078-3072

Received 20 June 2002; published 3 February 2003

We experimentally and numerically investigate the quantum accelerator mode dynamics of an atom optical realization of the quantum δ-kicked accelerator, whose classical dynamics are chaotic. Using a Ramsey-type experiment, we observe interference, demonstrating that quantum accelerator modes are formed coherently. We construct a link between the behavior of the evolution’s fidelity and the phase space structure of a recently proposed pseudoclassical map, and thus account for the observed interference visibilities.


©2003 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevLett.90.054101
DOI: 10.1103/PhysRevLett.90.054101
PACS: 05.45.Mt, 03.65.Sq, 32.80.Lg, 42.50.Vk

[ Abstract  |  Previous article  |  Next article  |  Issue 5 ]