Subpicosecond X rotations of atomic clock states

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We demonstrate subpicosecond-timescale population transfer between the pair of hyperfine ground states of atomic rubidium using a single laser-pulse. Our scheme utilizes the geometric and dynamic phases induced during Rabi oscillation through the fine-structure excited state to construct an X rotation gate for the hyperfine-state qubit system. The experiment performed with a femtosecond laser and cold rubidium atoms, in a magnetooptical trap, shows over 98% maximal population transfer between the clock states. We demonstrate subpicosecond-timescale population transfer between the pair of hyperfine ground states of atomic rubidium using a single laser-pulse. Our scheme utilizes the geometric and dynamic phases induced during Rabi oscillation through the fine-structure excited state to construct an X rotation gate for the hyperfine-state qubit system. The experiment performed with a femtosecond laser and cold rubidium atoms, in a magnetooptical trap, shows over 98% maximal population transfer between the clock states.
Publisher
AMER PHYSICAL SOC
Issue Date
2018-06
Language
English
Article Type
Article
Citation

PHYSICAL REVIEW A, v.97, no.5, pp.052322

ISSN
2469-9926
DOI
10.1103/PhysRevA.97.052322
URI
http://hdl.handle.net/10203/242532
Appears in Collection
PH-Journal Papers(저널논문)
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