2008/12/25 by Masao Takamoto, Hidetoshi Katori · 1 citation
Physics and Astronomy · #Advanced Frequency and Time Standards #Atomic and Subatomic Physics Research #Cold Atom Physics and Bose-Einstein Condensates #physics.atom-ph
paper · pdf · doi:10.1143/jpsj.78.013301
published as J. Phys. Soc. Jpn. 78, 013301 (2009) · 10 pages, 4 figures
openalex publication_date 2008/12/25 · arxiv created 2009/01/12 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We investigated the coherence of spin-polarized 87Sr atoms trapped in a light-shift-free one-dimensional optical lattice during their interaction with a clock laser on the 1S0-3P0 transition. Collapses and revivals appeared for more than 50 Rabi cycles, attributed to the thermal distribution of discrete vibrational states in the lattice potential. The population oscillation in the clock states lasted more than 1s, demonstrating high immunity from decoherence. This long atomic coherence suggests the feasibility of Pauli blocking of collisions in optical clock excitation.