Intensity Dependence of Photoassociation in a Quantum Degenerate Atomic Gas | Zendy

Ionuţ D. Prodan | Zendy; Marin Pichler | Zendy; M. Junker | Zendy; Randall G. Hulet | Zendy; John L. Bohn | Zendy

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Intensity Dependence of Photoassociation in a Quantum Degenerate Atomic Gas

Author(s) -

Ionuţ D. Prodan,

Marin Pichler,

M. Junker,

Randall G. Hulet,

John L. Bohn

Publication year - 2003

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.91.080402

Subject(s) - degenerate energy levels , physics , intensity (physics) , atomic physics , quantum , quantum mechanics

We have measured the intensity dependent rate and frequency shift of a photoassociation transition in a quantum degenerate gas of Li7. The rate increases linearly with photoassociation laser intensity for low intensities, whereas saturation is observed at higher intensities. The measured rates and shifts agree reasonably well with theory within the estimated systematic uncertainties. Several theoretically predicted saturation mechanisms are discussed, but a theory in which saturation arises because of quantum mechanical unitarity agrees well with the data

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