Physics – Atomic Physics
Scientific paper
2003-08-28
Physics
Atomic Physics
8 pages, 7 figures
Scientific paper
10.1103/PhysRevA.69.022105
It has been proposed that the radio-frequency electric-dipole (E1) transition between two nearly degenerate opposite-parity states in atomic dysprosium should be highly sensitive to possible temporal variation of the fine structure constant ($\alpha$) [V. A. Dzuba, V. V. Flambaum, and J. K. Webb, Phys. Rev. A {\bf 59}, 230 (1999)]. We analyze here an experimental realization of the proposed search in progress in our laboratory, which involves monitoring the E1 transition frequency over a period of time using direct frequency counting techniques. We estimate that a statistical sensitivity of $|\adota| \sim 10^{-18}$/yr may be achieved and discuss possible systematic effects that may limit such a measurement.
Budker Dmitry
Lamoreaux Steve K.
Nguyen Tuan Anh
Torgerson Justin R.
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