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Microwave Ionization of Hydrogen Atoms Below the Classical Chaos Border

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Published under licence by IOP Publishing Ltd
, , Citation R Blümel and U Smilansky 1987 Phys. Scr. 35 15 DOI 10.1088/0031-8949/35/1/003

1402-4896/35/1/15

Abstract

We present and discuss theoretical predictions for the occurrence of radiation induced ionization of hydrogen atoms in fields which are well below the classical ionization threshold. Strong ionization occurs due to enhanced population of a band of high n states which ionize easily. This enhancement happens only at rather narrowly defined field values, and is explained in terms of avoided crossings of Floquet levels.

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10.1088/0031-8949/35/1/003