Experimental and theoretical study of dynamic polarizabilities in the $5S_{1/2}$-$5D_{5/2}$ clock transition in rubidium-87 and determination of E1 matrix elements

Abstract

The interaction between light and an atom causes perturbations in the atom's energy levels, known as the light-shift. These light-shifts are a key source of inaccuracy in atomic clocks, and can also deteriorate their precision. We present a study of light-shifts and associated dynamic polarizabilities for a two-photon atomic clock based on the $5S_{1/2}$-$5D_{5/2}$ transition in rubidium-87 over the range 770 nm to 800 nm. We determine experimental and theoretical values for a magic wavelength in this range and the electric dipole (E1) matrix element for the $5P_{3/2}$-$5D_{5/2}$ transition. We find a magic wavelength of 776.179(5) nm (experimental) and 776.21 nm (theoretical) in the vicinity of the $5P_{3/2}$-$5D_{5/2}$ resonance, and the corresponding reduced E1 matrix element 1.80(6) $e{a}_0$ (experimental) and 1.96(15) $e{a}_0$ (theoretical). These values resolve a previous discrepancy between theory and experiment.

References in corpus (6)

• Precision Measurement of Transition Matrix Elements via Light Shift Cancellation
• Magic wavelengths for the np-ns transitions in alkali-metal atoms
• High-performance, compact optical standard
• Lifetime measurements of the 5d states of rubidium
• Adapting a Cryogenic Sapphire Oscillator for Very Long Baseline Interferometry
• Accurate determination of electric-dipole matrix elements in K and Rb from Stark shift measurements

Cited by in corpus (5)

• Electric dipole transition amplitudes for atoms and ions with one valence electron
• Tailoring the Stability of a Two-Color, Two-Photon Rubidium Frequency Standard
• An optical atomic clock using $4D_J$ states of rubidium
• Theoretical characterisation of the barium II and radium II ions
• Relativistic and Electron Correlation Effects in Static Dipole Polarizabilities for Main-Group Elements