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Title: Selective-field-ionization dynamics of a lithium m=2 Rydberg state: Landau-Zener model versus quantal approach

Abstract

The selective-field-ionization (SFI) dynamics of a Rydberg state of lithium with magnetic quantum number m=2 is studied in detail based on two different theoretical models: (1) a close coupling integration of the Schroedinger equation and (2) the multichannel (incoherent) Landau-Zener (MLZ) model. The m=2 states are particularly interesting, since they define a border zone between fully adiabatic (m=0,1) and fully diabatic (m>2) ionization dynamics. Both sets of calculations are performed up to, and above, the classical ionization limit. It is found that the MLZ model is excellent in the description of the fully diabatic dynamics while certain discrepancies between the time dependent quantal amplitudes appear when the dynamics become involved. Thus, in this region, the analysis of experimental SFI spectra should be performed with care.

Authors:
 [1];  [2]
  1. Department of Physics, University of Bergen, Allegt. 55, N-5007 (Norway)
  2. Department of Physics, Po. 7800, University of Bergen (Norway)
Publication Date:
OSTI Identifier:
20636392
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 67; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevA.67.053402; (c) 2003 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; AMPLITUDES; COUPLING; LANDAU-ZENER FORMULA; LITHIUM; OPTICS; PHOTOIONIZATION; PHOTON-ATOM COLLISIONS; RYDBERG STATES; SCHROEDINGER EQUATION; TIME DEPENDENCE

Citation Formats

Foerre, M, Laboratoire de Chimie Physique-Matiere et Rayonnement, Universite Pierre et Marie Curie, 11, rue Pierre et Marie Curie, 75231 Paris Cedex 05,, and Hansen, J P. Selective-field-ionization dynamics of a lithium m=2 Rydberg state: Landau-Zener model versus quantal approach. United States: N. p., 2003. Web. doi:10.1103/PhysRevA.67.053402.
Foerre, M, Laboratoire de Chimie Physique-Matiere et Rayonnement, Universite Pierre et Marie Curie, 11, rue Pierre et Marie Curie, 75231 Paris Cedex 05,, & Hansen, J P. Selective-field-ionization dynamics of a lithium m=2 Rydberg state: Landau-Zener model versus quantal approach. United States. https://doi.org/10.1103/PhysRevA.67.053402
Foerre, M, Laboratoire de Chimie Physique-Matiere et Rayonnement, Universite Pierre et Marie Curie, 11, rue Pierre et Marie Curie, 75231 Paris Cedex 05,, and Hansen, J P. Thu . "Selective-field-ionization dynamics of a lithium m=2 Rydberg state: Landau-Zener model versus quantal approach". United States. https://doi.org/10.1103/PhysRevA.67.053402.
@article{osti_20636392,
title = {Selective-field-ionization dynamics of a lithium m=2 Rydberg state: Landau-Zener model versus quantal approach},
author = {Foerre, M and Laboratoire de Chimie Physique-Matiere et Rayonnement, Universite Pierre et Marie Curie, 11, rue Pierre et Marie Curie, 75231 Paris Cedex 05, and Hansen, J P},
abstractNote = {The selective-field-ionization (SFI) dynamics of a Rydberg state of lithium with magnetic quantum number m=2 is studied in detail based on two different theoretical models: (1) a close coupling integration of the Schroedinger equation and (2) the multichannel (incoherent) Landau-Zener (MLZ) model. The m=2 states are particularly interesting, since they define a border zone between fully adiabatic (m=0,1) and fully diabatic (m>2) ionization dynamics. Both sets of calculations are performed up to, and above, the classical ionization limit. It is found that the MLZ model is excellent in the description of the fully diabatic dynamics while certain discrepancies between the time dependent quantal amplitudes appear when the dynamics become involved. Thus, in this region, the analysis of experimental SFI spectra should be performed with care.},
doi = {10.1103/PhysRevA.67.053402},
url = {https://www.osti.gov/biblio/20636392}, journal = {Physical Review. A},
issn = {1050-2947},
number = 5,
volume = 67,
place = {United States},
year = {2003},
month = {5}
}