Chaos Assisted Tunneling and Nonspreading Wave Packets

• Authors: J. Zakrzewski , D. Delande , A. Buchleitner
• Languages of publication: EN

Abstracts

EN

Consider an initial state lying on a primary resonance island. The state may tunnel into the chaotic sea surrounding it and further escape to infinity via chaotic diffusion. Properties of transport in such a situation are studied on an exemplary system - the hydrogen atom driven by microwaves. We show that the combination of tunneling followed by chaotic diffusion leads to peculiar large scale fluctuations of the AC Stark shift and ionization rates. An appropriate random matrix model describes accurately these statistical properties.

Keywords

EN

05.45.+b; 32.80.Rm; 42.50.Hz

Discipline

• 42.50.Hz: Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift(for multiphoton ionization and excitation of atoms and molecules, see 32.80.Rm, and 33.80.Rv, respectively)
• 32.80.Rm: Multiphoton ionization and excitation to highly excited states

• Journal: Acta Physica Polonica A
• Year: 1998
• Volume: 93
• Issue: 1
• Pages: 179-186

Dates

published

1998-01

Contributors

author

J. Zakrzewski

• Instytut Fizyki im. Mariana Smoluchowskiego, Uniwersytet Jagiellonski Reymonta 4, 30-059 Kraków, Poland

author

D. Delande

• Laboratoire Kastler-Brossel, Tour 12, Etage 1, Université Pierre et Marie Curie 4 Place Jussieu, 75-005 Paris, France

author

A. Buchleitner

• Max-Planck-Institut für Quantenoptik Hans-Kopfermann-Str. 1, 85748 Garching, Germany

Identifiers

DOI

10.12693/APhysPolA.93.179