The Stark effect in atomic Rydberg states through a quantum defect approach

A basis set of quantum defect orbitals (QDOs) has been adopted for the diagonalization of the Hamiltonian matrix of nonhydrogenic atoms in the presence of an external electric field, so that the Stark structure of the Rydberg states has been possible to determine. The presently obtained Stark maps are in excellent agreement with those resulting from theory and experiment, as reported in the literature for a few representative atoms. The adequacy of the Stark quantum defect orbital (SQDO) procedure for accurately dealing with properties related to the Stark effect in atoms is suggested. © 2005 Wiley Periodicals, Inc. Int J Quantum Chem, 2005

[1]  I. Martín,et al.  Oscillator strengths and ionisation cross sections for the absorption of CF2Cl2 in the UV and VUV spectral regions. A MQDO study , 2003 .

[2]  E. Charro,et al.  Intensities of E2 Spectral Lines in the Astrophysically Important Ion Mg II , 2003 .

[3]  A. M. Velasco,et al.  Intensities of vibronic transitions for the main bands observed in the electronic spectrum of atmospherically relevant nitric oxide , 2002 .

[4]  M. Romalis,et al.  Measurement of the scalar Stark shift of the 6 1 S 0 -->6 3 P 1 transition in Hg , 2000 .

[5]  F. Robicheaux,et al.  Selective field ionization in Li and Rb: Theory and experiment , 2000 .

[6]  J. Warntjes,et al.  Isolated-core excitations in strong electric fields. II. Experimental results in magnesium , 2000 .

[7]  S. Zhang,et al.  Lifetime measurements of Stark states of sodium , 1997 .

[8]  Wenyu Liu,et al.  Positions and widths for anticrossings of potassium Rydberg Stark states , 1996 .

[9]  G. Diercksen,et al.  Quantum defect orbital study of electronic transitions in Rydberg molecules: ammonium and fluoronium radicals , 1996 .

[10]  J. Karwowski,et al.  Quantum defect orbitals and the Dirac second-order equation , 1991 .

[11]  Gallagher Tf,et al.  Field ionization of the n=8-15 states of sodium. , 1987 .

[12]  Gallagher,et al.  Anticrossing spectroscopy of K Rydberg atoms using 300-K blackbody radiation. , 1986, Physical review. A, General physics.

[13]  K. A. Smith,et al.  Diabatic Field Ionization of Highly Excited Sodium Atoms , 1980 .

[14]  D. Kleppner,et al.  Stark structure of the Rydberg states of alkali-metal atoms , 1979 .

[15]  E. Luc-Koenig,et al.  Interpretation of Electric-Field-Induced Oscillations in the Cross Section of a One-Electron Atom above the Ionization Limit , 1979 .

[16]  D. Kleppner,et al.  Field-ionization processes in excited atoms , 1978 .

[17]  I. Martín,et al.  New procedure for generating valence and Rydberg orbitals , 1976 .

[18]  D. Kleppner,et al.  Structure of sodium Rydberg states in weak to strong electric fields , 1976 .

[19]  I. Martín,et al.  New procedure for generating valence and Rydberg orbitals. II. Atomic photoionization cross sections , 1975 .

[20]  G. Simons.  New procedure for generating valence and Rydberg orbitals. I. Atomic oscillator strengths , 1974 .