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Enhanced effect of temporal variation of the fine structure constant in diatomic molecules

V. V. Flambaum
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Abstract

We show that the relative effect of variation of the fine structure constant in microwave transitions between very close and narrow rotational-hyperfine levels may be enhanced 2-3 orders of magnitude in diatomic molecules like LaS, LaO, LuS, YbF, etc. The enhancement is a result of cancellation between the hyperfine and rotational intervals.

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V. V. Flambaum. 2006-01-06. Enhanced effect of temporal variation of the fine structure constant in diatomic molecules. https://doi.org/10.1103/physrevlett.97.092502

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