Subpicosecond $X$ rotations of atomic clock states

Abstract

We demonstrate subpicosecond-time-scale 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 in order to construct an $X$ rotation gate for the hyperfine-state qubit system. Experiment performed with a femtosecond laser and cold rubidium atoms, in a magneto-optical trap, shows over 98\% maximal population transfer between the clock states.

arXiv comment5 pages, 5 figures

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Cited by in corpus (6)

• Ultrafast energy exchange between two single Rydberg atoms on the nanosecond timescale
• Ultrafast high-fidelity state readout of single neutral atom
• Multi-scale architecture for fast optical addressing and control of large scale qubit arrays
• Optical Two-dimensional Coherent Spectroscopy of Cold Atoms
• Leakage suppression by ultrafast pulse shaping
• Ultrafast time-scale Berry-phase gates of atomic clock states