Small phase-space structures and their relevance to pulsed quantum evolution: Stepwise ionization of the excited hydrogen atom in a microwave pulse
Journal Article
·
· Physical Review. A
- Department of Physics, Texas Southern University, Houston, Texas 77004 (United States)
Experiments have shown that the microwave ionization probability of a highly excited, almost monodimensional, hydrogen atom subjected to a microwave pulse sometimes grows in steps when the peak electric field of the pulse is increased. Classical pulsed simulations display the same steps, which have been traced to phase-space metamorphoses. Quantum numerical calculations again exhibit the same ionization steps. I show that the time sequence of two-level interactions, responsible for the observed steps in the quantum picture, is strictly related to the classical phase-space structures generated by the above-mentioned metamorphoses.
- OSTI ID:
- 21408441
- Journal Information:
- Physical Review. A, Journal Name: Physical Review. A Journal Issue: 3 Vol. 81; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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