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Atoms 2016, 4(3), 21; doi:10.3390/atoms4030021

Analysis of Polarizability Measurements Made with Atom Interferometry

1
Department of Physics, University of Arizona, Tucson, AZ 85721, USA
2
College of Optical Sciences, University of Arizona, Tucson, AZ 85721, USA
*
Author to whom correspondence should be addressed.
Received: 1 June 2016 / Accepted: 4 July 2016 / Published: 6 July 2016
(This article belongs to the Special Issue Atom Interferometry)
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Abstract

We present revised measurements of the static electric dipole polarizabilities of K, Rb, and Cs based on atom interferometer experiments presented in [Phys. Rev. A 2015, 92, 052513] but now re-analyzed with new calibrations for the magnitude and geometry of the applied electric field gradient. The resulting polarizability values did not change, but the uncertainties were significantly reduced. Then, we interpret several measurements of alkali metal atomic polarizabilities in terms of atomic oscillator strengths fik, Einstein coefficients Aik, state lifetimes τk, transition dipole matrix elements Dik, line strengths Sik, and van der Waals C6 coefficients. Finally, we combine atom interferometer measurements of polarizabilities with independent measurements of lifetimes and C6 values in order to quantify the residual contribution to polarizability due to all atomic transitions other than the principal ns-npJ transitions for alkali metal atoms. View Full-Text
Keywords: atom interferometry; polarizability; oscillator strengths; state lifetimes; dipole matrix elements; line strength; van der Waals interactions atom interferometry; polarizability; oscillator strengths; state lifetimes; dipole matrix elements; line strength; van der Waals interactions
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Gregoire, M.D.; Brooks, N.; Trubko, R.; Cronin, A.D. Analysis of Polarizability Measurements Made with Atom Interferometry. Atoms 2016, 4, 21.

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