Who named the quantum defect?

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Description

The notion of the quantum defect is important in atomic and molecular spectroscopy and also in unifying spectroscopy with collision theory. In the latter context, the quantum defect may be viewed as an ancestor of the phase shift. However, the origin of the term quantum defect does not seem to be explained in standard textbooks. It occurred in a 1921 paper by Schroedinger, preceding quantum mechanics, yet giving the correct meaning as an index of the short-range interactions with the core of an atom. The authors present the early history of the quantum-defect idea, and sketch its recent developments.

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14 p.

Creation Information

Rau, A.R.P. & Inokuti, M. August 1, 1997.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

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Authors

  • Rau, A.R.P. Louisiana State Univ., Baton Rouge, LA (United States). Dept. of Physics and Astronomy
  • Inokuti, M. Argonne National Lab., IL (United States). Physics Div.

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Description

The notion of the quantum defect is important in atomic and molecular spectroscopy and also in unifying spectroscopy with collision theory. In the latter context, the quantum defect may be viewed as an ancestor of the phase shift. However, the origin of the term quantum defect does not seem to be explained in standard textbooks. It occurred in a 1921 paper by Schroedinger, preceding quantum mechanics, yet giving the correct meaning as an index of the short-range interactions with the core of an atom. The authors present the early history of the quantum-defect idea, and sketch its recent developments.

Physical Description

14 p.

Notes

INIS; OSTI as DE97008120

Source

  • Other Information: PBD: [1997]

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Identifier

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  • Other: DE97008120
  • Report No.: ANL/PHY/PP--89081
  • Grant Number: W-31109-ENG-38
  • DOI: 10.2172/510392 | External Link
  • Office of Scientific & Technical Information Report Number: 510392
  • Archival Resource Key: ark:/67531/metadc695914

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Creation Date

  • August 1, 1997

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

Description Last Updated

  • Aug. 23, 2016, 3:26 p.m.

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Rau, A.R.P. & Inokuti, M. Who named the quantum defect?, report, August 1, 1997; Illinois. (digital.library.unt.edu/ark:/67531/metadc695914/: accessed August 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.