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Title: Very-high-n Stark wave packets generated by an electric-field step

Abstract

Wave packets comprising a coherent superposition of n{approx_equal}390 Stark states have been created in potassium by rapid application of a dc field. Their properties are examined using a half-cycle probe pulse that is applied following a variable time delay and that ionizes a fraction of the excited atoms. The survival probability exhibits pronounced oscillations (quantum beats) that are associated with the time evolution of the wave packet. Interestingly, even in the present regime of complete overlap of different Stark manifolds, a single dominant beat frequency is observed, and this is explained quantum mechanically in terms of energy-level statistics. Similar behavior is predicted by classical trajectory Monte Carlo simulations that reproduce well the experimental observations demonstrating classical-quantum correspondence in high-n systems. {copyright} {ital 1997} {ital The American Physical Society}

Authors:
;  [1]; ;  [2]
  1. Department of Physics and the Rice Quantum Institute, Rice University, 6100 South Main Street, Houston, Texas 77005-1892 (United States)
  2. Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6373 (United States)
Publication Date:
Research Org.:
Oak Ridge National Laboratory
OSTI Identifier:
450327
DOE Contract Number:  
AC05-96OR22464
Resource Type:
Journal Article
Journal Name:
Physical Review A
Additional Journal Information:
Journal Volume: 55; Journal Issue: 2; Other Information: PBD: Feb 1997
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; POTASSIUM; STARK EFFECT; WAVE PACKETS; TRAPS; ELECTRIC FIELDS; PROBABILITY

Citation Formats

Frey, M T, Dunning, F B, Reinhold, C O, Burgdoerfer, J, and Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996-1200. Very-high-n Stark wave packets generated by an electric-field step. United States: N. p., 1997. Web. doi:10.1103/PhysRevA.55.R865.
Frey, M T, Dunning, F B, Reinhold, C O, Burgdoerfer, J, & Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996-1200. Very-high-n Stark wave packets generated by an electric-field step. United States. doi:10.1103/PhysRevA.55.R865.
Frey, M T, Dunning, F B, Reinhold, C O, Burgdoerfer, J, and Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996-1200. Sat . "Very-high-n Stark wave packets generated by an electric-field step". United States. doi:10.1103/PhysRevA.55.R865.
@article{osti_450327,
title = {Very-high-n Stark wave packets generated by an electric-field step},
author = {Frey, M T and Dunning, F B and Reinhold, C O and Burgdoerfer, J and Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996-1200},
abstractNote = {Wave packets comprising a coherent superposition of n{approx_equal}390 Stark states have been created in potassium by rapid application of a dc field. Their properties are examined using a half-cycle probe pulse that is applied following a variable time delay and that ionizes a fraction of the excited atoms. The survival probability exhibits pronounced oscillations (quantum beats) that are associated with the time evolution of the wave packet. Interestingly, even in the present regime of complete overlap of different Stark manifolds, a single dominant beat frequency is observed, and this is explained quantum mechanically in terms of energy-level statistics. Similar behavior is predicted by classical trajectory Monte Carlo simulations that reproduce well the experimental observations demonstrating classical-quantum correspondence in high-n systems. {copyright} {ital 1997} {ital The American Physical Society}},
doi = {10.1103/PhysRevA.55.R865},
journal = {Physical Review A},
number = 2,
volume = 55,
place = {United States},
year = {1997},
month = {2}
}