2006/01/31 by V. V. Flambaum · 2 citations
Physics and Astronomy · #physics.atom-ph
paper · pdf · doi:10.1103/physrevlett.97.092502
arxiv created 2006/02/10 · arxiv updated 2009/12/01
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.