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It has been proposed that the radio-frequency electric-dipole (E1) transitionbetween two nearly degenerate opposite-parity states in atomic dysprosiumshould be highly sensitive to possible temporal variation of the fine structureconstant ($\alpha$) [V. A. Dzuba, V. V. Flambaum, and J. K. Webb, Phys. Rev. A{\bf 59}, 230 (1999)]. We analyze here an experimental realization of theproposed search in progress in our laboratory, which involves monitoring the E1transition frequency over a period of time using direct frequency countingtechniques. We estimate that a statistical sensitivity of $|\adota| \sim10^{-18}$/yr may be achieved and discuss possible systematic effects that maylimit such a measurement.Comment: 8 pages, 7 figure

physical review. a, atomic, molecular, and optical physics/physical review, a, atomic, molecular, and optical physics

Towards a sensitive search for variation of the fine-structure constant using radio-frequency<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>E</mml:mi><mml:mn>1</mml:mn><mml:mn /></mml:math>transitions in atomic dysprosium

Towards a sensitive search for variation of the fine-structure constant using radio-frequencyE1transitions in atomic dysprosium