Combination of a magnetic Feshbach resonance and an optical bound-to-bound transition

Details Combination of a magnetic Feshbach resonance and an optical bound-to-bound transition Combination of a magnetic Feshbach resonance and an optical bound-to-bound transition

2009-03-20

arxiv.org/abs/0903.3570v2

Physical Review A 79, 062713 (2009)

Physics

Condensed Matter

Other Condensed Matter

Scientific paper

10.1103/PhysRevA.79.062713

We use laser light near resonant with an optical bound-to-bound transition to shift the magnetic field at which a Feshbach resonance occurs. We operate in a regime of large detuning and large laser intensity. This reduces the light-induced atom-loss rate by one order of magnitude compared to our previous experiments [D.M. Bauer et al. Nature Phys. 5, 339 (2009)]. The experiments are performed in an optical lattice and include high-resolution spectroscopy of excited molecular states, reported here. In addition, we give a detailed account of a theoretical model that describes our experimental data.

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