Testing qed by measuring a he∗ tune-out wavelength

B. M. Henson, J. A. Ross, K. F. Thomas, C. N. Kuhn, D. K. Shin, S. S. Hodgman, Li Yan Tang, G. W.F. Drake, A. Truscott, K. G.H. Baldwin

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    Abstract

    We report a new measurement for the 413 nm tune-out wavelength for metastable helium (He∗); the optical wavelength at which the light does not interact with the atom, whose accurate determination provides a sensitive test of QED independent of transition energy measurements. Mitroy and Tang have shown[1] that the 413nm tune-out wavelength of the metastable 23S1 state of helium is particularly sensitive to QED effects, and a measurement of this tune-out to 175MHz accuracy would constitute the most precise measurement of transition rate information made in Helium.

    Original languageEnglish
    Title of host publicationAOS Australian Conference on Optical Fibre Technology, ACOFT 2019 and Australian Conference on Optics, Lasers, and Spectroscopy, ACOLS 2019
    EditorsArnan Mitchell, Halina Rubinsztein-Dunlop
    PublisherSPIE
    ISBN (Electronic)9781510631403
    DOIs
    Publication statusPublished - 2019
    EventAOS Australian Conference on Optical Fibre Technology, ACOFT 2019 and Australian Conference on Optics, Lasers, and Spectroscopy, ACOLS 2019 - Melbourne, Australia
    Duration: 9 Dec 201912 Dec 2019

    Publication series

    NameProceedings of SPIE - The International Society for Optical Engineering
    Volume11200
    ISSN (Print)0277-786X
    ISSN (Electronic)1996-756X

    Conference

    ConferenceAOS Australian Conference on Optical Fibre Technology, ACOFT 2019 and Australian Conference on Optics, Lasers, and Spectroscopy, ACOLS 2019
    Country/TerritoryAustralia
    CityMelbourne
    Period9/12/1912/12/19

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