Observation of quantum jumps in a single atom

Details Observation of quantum jumps in a single atom Observation of quantum jumps in a single atom

Oct 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986phrvl..57.1699b&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 57, Oct. 6, 1986, p. 1699-1702. USAF-Navy-supported research.

Physics

324

Atomic Energy Levels, Electron Transitions, Laser Induced Fluorescence, Quantum Mechanics, Mercury (Metal), Metastable Atoms, Resonance Fluorescence, Optical Cooling Of Atoms, Trapping, Nonclassical States Of The Electromagnetic Field, Including Entangled Photon States, Quantum State Engineering And Measurements

Scientific paper

The radiatively driven electric quadrupole transition to the metastable 2D(5/2) state in a single laser-cooled Hg II ion is detected by monitoring the abrupt cessation of the fluorescence signal from the laser-excited 2S(1/2) - 2P(1/2) first resonance line. When the ion 'jumps' back from the metastable D state to the ground S state, the S - P resonance fluorescence signal immediately returns. The statistical properties of the quantum jumps are investigated; for example, photon antibunching in the emission from the D state is observed with 100-percent efficiency.

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