High-field level crossing in atomic hydrogen

Kara M. Lynch, Kieran Flanagan, H. Henry Stroke

    Research output: Contribution to journalComment/debatepeer-review


    In hydrogen, an external magnetic field, which we calculate to be ?16.65?T, cancels the internal field caused by the electron motion in the magnetic sublevels with mJ=+1/2. This results in an energy-level degeneracy between states with nuclear magnetic sublevels mI of opposite signs. The evaluation of this field has been calculated previously with the use of the low-field quantum numbers F,?mF. We show that this calculation is considerably simpler in the high-field mJ,?mI representation. A comparison is given with the earlier work.

    Original languageEnglish (US)
    Article number1.4901810
    JournalAmerican Journal of Physics
    Issue number4
    StatePublished - Apr 1 2015

    ASJC Scopus subject areas

    • General Physics and Astronomy


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