Analysis of polarizability measurements made with atom interferometry

Maxwell D. Gregoire, Nathan Brooks, Raisa Trubko, Alexander D. Cronin

Research output: Contribution to journalArticle

5 Scopus citations

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.

Original languageEnglish (US)
Article number21
JournalAtoms
Volume4
Issue number3
DOIs
StatePublished - Sep 1 2016

Keywords

  • Atom interferometry
  • Dipole matrix elements
  • Line strength
  • Oscillator strengths
  • Polarizability
  • State lifetimes
  • Van der Waals interactions

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Condensed Matter Physics

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