NDLI: Correlations and level statistics in complex spectra

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Correlations and level statistics in complex spectra

Content Provider	Scilit
Author	Connerade, J. P. Grant, I. P. Marketos, P. Oberdisse, J.
Copyright Year	1995
Description	Journal: Journal of Physics B: Atomic, Molecular and Optical Physics The relativistic configuration interaction method has been used for the investigation of the Sr I spectrum which arises from excitation of one electron out of the 4p shell. Many-body effects are found to dominate the lower part of this spectrum through extensive configuration mixing. Oscillator strengths for the transitions between these levels and the Sr I ground state are used to obtain a convoluted Sr I absorption spectrum. Theoretical predictions for the structure and position of Sr II levels, serving as Sr I series limits in corresponding experimental investigations, are also provided. A statistical analysis was carried out on the theoretically predicted Sr I level energies and a Wigner distribution for them has been obtained. This is a consequence of the strong configuration mixing, which in turn is related to the contraction of the Sr 4d orbital. A value of 0.59 for the Brody parameter q, a measure of deviations from equal interlevel spacings and an indicator of the degree of level repulsion, has been determined.
Related Links	http://iopscience.iop.org/article/10.1088/0953-4075/28/13/007/pdf
Ending Page	2551
Page Count	13
Starting Page	2539
ISSN	09534075
e-ISSN	13616455
DOI	10.1088/0953-4075/28/13/007
Journal	Journal of Physics B: Atomic, Molecular and Optical Physics
Issue Number	13
Volume Number	28
Language	English
Publisher	IOP Publishing
Publisher Date	1995-07-14
Access Restriction	Open
Subject Keyword	Journal: Journal of Physics B: Atomic, Molecular and Optical Physics Wigner Distribution Statistical Analysis
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics

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