Phys. Rev. Lett. 83, 1747–1750 (1999)Population Trapping in Extremely Highly Excited States in Microwave IonizationReceived 18 December 1998; published in the issue dated 30 August 1999 When a lithium atom in a Rydberg state ( n∼80) is exposed to a short, intense microwave pulse we find that substantial population is left in extremely highly excited states ( n>120), in spite of the fact that the microwave field amplitude is more than 40 times larger than required to classically ionize these states. © 1999 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.83.1747
DOI:
10.1103/PhysRevLett.83.1747
PACS:
32.80.Rm, 42.50.Hz
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