Stark effect of fine-structure levels of a hydrogenlike atom

B. A. Zon, Boris G. Katsnelson, Yu. N. Mitin +1 more

F. F. Baryshenkov, Valerii S. Lisitsa

Geoffrey L. Sewell

T. G. Eck, R. J. Huff

We present data for signals associated with the crossing of fine structure levels of a hydrogenlike atom when these levels are excited at a uniform rate and coupled by the application of a static electric field. With modest electric field strengths, strong crossing signals are seen even when the lowest order of coupling for the two levels involved is third order.

Vladimir Rojansky

The Stark effect of the fine structure of hydrogenic atoms is discussed in the light of the quantum mechanics. Explicit formulas are given for the energy levels in either a weak or a strong electric field, including in each case both the relativity corrections and the Stark effect. (The conventional treatment neglects either one or the other.) The results are, except in form, similar to those recently given by Schlapp. In the new mechanics, in contradistinction to the old Bohr theory, there is a linear Stark effect even in weak fields, because of the identity of energy for the $\mathrm{ns}$ and $n{p}_{1}$ levels in the absence of external fields. This degeneracy is shown to account for the results of the recent experiments of Ornstein, Zernike, and Snoek, who found that the $2s$ level in $H$ is not metastable.The coefficients are found for the development of the "parabolic" eigenfunctions in terms of the "polar" ones, and a set of numerical values of these coefficients is tabulated.Methods are given for the calculation of the relative intensities in the Stark effect in terms of the already available theoretical fine structure intensities in the absence of fields.

Sergey A. Zapryagaev, S. I. Lavrinenko