2009/04/14 by Dansha Jiang, Bindiya Arora, M. S. Safronova +1 · 2 citations
Physics and Astronomy · #Advanced Frequency and Time Standards #Atomic and Molecular Physics #Atomic and Subatomic Physics Research #Atomic physics #Black-body radiation #Ion #Molecule #Perturbation theory (quantum mechanics) #Physics #Polarizability #Quantum mechanics #Radiation #Scalar (mathematics) #Wave function #physics.atom-ph
paper · pdf · doi:10.1088/0953-4075/42/15/154020
6 pages
arxiv created 2009/04/14 · openalex publication_date 2009/07/16 · arxiv updated 2015/05/13 · openalex created_date 2019/07/30 · openalex updated_date 2026/08/05
The blackbody-radiation (BBR) shift of the 5s–4d 5/2 clock transition in 88 Sr + is calculated to be 0.250(9) Hz at room temperature, T = 300 K, using the relativistic all-order method where all single and double excitations of the Dirac–Fock wavefunction are included to all orders of perturbation theory. The BBR shift is a major component in the uncertainty budget of the optical frequency standard based on the 88 Sr + trapped ion. The scalar polarizabilities of the 5s and 4d 5/2 levels, as well as the tensor polarizability of the 4d 5/2 level, are presented together with the evaluation of their uncertainties. The lifetimes of the 4d 3/2 , 4d 5/2 , 5p 1/2 and 5p 3/2 states are calculated and compared with experimental values.