Phys. Rev. Lett. 68, 3016–3019 (1992)Photon antibunching and non-Poissonian fluorescence of a single three-level ionReceived 3 September 1991; published in the issue dated 18 May 1992 The photon pair correlation in the laser-excited fluorescence of a single trapped and cooled Ba+ ion shows antibunching and, in addition, novel nonclassical phenomena absent in the fluorescence of two-level atoms. They include excessive transient values of the correlation caused by optical pumping, and temporally extended sub-Poissonian photon emission probability which arises from the transient excitation of nonabsorbing Raman coherence. The fluorescence also displays sub-Poissonian photon statistics. © 1992 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.68.3016
DOI:
10.1103/PhysRevLett.68.3016
PACS:
42.50.Dv, 32.50.+d
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