Lifetime Determination of the 5s5p ³P^\rmo₀ Metastable State in ⁸⁷Sr from the Electric Dipole Matrix Element

2024/01/20 by Lu, Xiao-Tong, Guo, Feng, Liu, Yan-Yan +6
#Applied Physics (physics.app-ph) #Atomic Physics (physics.atom-ph) #FOS: Physical sciences

paper · doi:10.48550/arxiv.2401.11173

Abstract

We report a measurement of the radiative lifetime of the 5s5p ^\rm3P^\rmo_\rm0 metastable state in ⁸⁷Sr, which is coupled to the 5s^\rm2 ^\rm1S_\rm0 ground state via a hyperfine-induced electric dipole transition. The radiative lifetime is determined to be 151.4(48) s, in good agreement with theoretical results. Our approach relies on accurate measurements of laser intensity and free-space Rabi frequency, enabling lifetime measurements of any excited state and particularly suitable for long-lived states.

Related

• Lifetime measurement of the 5s5p 1P1 state in strontium
• Lifetimes of the Metastable 6d ²D_5/2 and 6d ²D_3/2 States of Ra⁺
• Spectroscopy of the 5s5p ³ P₀ → 5s5d ³ D₁ transition of strontium using laser cooled atoms
• Direct measurement of the 3P0 clock state natural lifetime in 87Sr
• Direct Measurement of the 5s5p ¹P₁ → 5s4d ¹D₂ Decay Rate in Strontium