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Closed Orbit Bifurcations in Continuum Stark Spectra
Courtney, Michael Jiao, Hong Spellmeyer, Neal Kleppner, Daniel Gao, J. Delos, John B.
Courtney, Michael
Jiao, Hong
Spellmeyer, Neal
Kleppner, Daniel
Gao, J.
Delos, John B.
Abstract
We report an experimental and theoretical study of the effect of bifurcations of closed classical orbits in continuum Stark spectra. Our findings provide a natural way to understand how the spectrum evolves from a simple sinusoidal modulation at positive energy to a quasidiscrete spectrum below the classical ionization limit. The experiment employs scaled-energy spectroscopy of lithium. The results provide the first experimental confirmation of a formulation of closed-orbit theory that provides a quantitative description of the behavior of the spectrum at a bifurcation.
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1995-02-01
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American Physical Society
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Physics
DOI
https://doi.org/10.1103/PhysRevLett.74.1538