Unusually large polarizabilities and previously unidentified atomic states in Ba

2003/07/31 by Chih-Hao Li, C.-H. Li, S. M. Rochester +4 · 1 citation
Physics and Astronomy · #Advanced Chemical Physics Studies #Atomic and Molecular Physics #Cold Atom Physics and Bose-Einstein Condensates #physics.atom-ph

paper · pdf · doi:10.1103/physreva.69.042507

published as Phys. Rev. A, 69, 042507 (2004) · 29 pages, 12 figures

arxiv created 2003/09/02 · openalex publication_date 2004/04/07 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

Electric polarizabilities of four even-parity states of atomic barium in the range 35 600--36 000\phantom\rule0.3em0excm^\ensuremath-1, excited via two successive E1 transitions, are measured using direct spectroscopy. Several states have polarizabilities more than two orders of magnitude larger than might be expected from the known energy levels of Ba, implying the existence of two previously unobserved odd-parity states nearby. These two states are located using Stark-induced excitation, and tentatively identified as (Xe)6s8p\phantom\rule0.3em0ex³P_0,2. The (also unusually high) polarizabilities of these states, as well as that of a third odd-parity state, are reported.

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