Quantum Poincare' recurrences in microwave ionization of Rydberg atoms

Details Quantum Poincare' recurrences in microwave ionization of Rydberg atoms Quantum Poincare' recurrences in microwave ionization of Rydberg atoms

2000-06-28

arxiv.org/abs/cond-mat/0006451v1

Physics

Condensed Matter

6 pages, 3 figures, Contribution to the Proceedings of the Conference "Atoms, molecules and quantum dots in laser fields: fund

Scientific paper

We study the time dependence of the ionization probability of Rydberg atoms driven by a microwave field. The quantum survival probability follows the classical one up to the Heisenberg time and then decays inversely proportional to time, due to tunneling and localization effects. We provide parameter values which should allow one to observe such decay in laboratory experiments. Relations to the $1/f$ noise are also discussed.

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