Optical Feshbach resonances of alkaline-earth-metal atoms in a one- or two-dimensional optical lattice

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Pascal Naidon¹ and Paul S. Julienne^1,2
¹Atomic Physics Division, National Institute of Standards and Technology, 100 Bureau Drive Stop 8423, Gaithersburg, Maryland 20899-8423, USA
²Joint Quantum Institute, National Institute of Standards and Technology, 100 Bureau Drive Stop 8423, Gaithersburg, Maryland 20899-8423, USA

Received 29 September 2006; published 20 December 2006

Motivatedby a recent experiment by Zelevinsky et al. [Phys. Rev. Lett.96, 203201 (2006)], we present the theory for photoassociation andoptical Feshbach resonances of atoms confined in a tight one-dimensional(1D) or two-dimensional (2D) optical lattice. In the case ofan alkaline-earth-metal intercombination resonance, the narrow natural width of theline makes it possible to observe clear manifestations of thedimensionality, as well as some sensitivity to the scattering lengthof the atoms. Among possible applications, a 2D lattice maybe used to increase the spectroscopic resolution by about oneorder of magnitude. Furthermore, a 1D lattice induces a shiftthat provides an alternative way of determining the strength ofa resonance by spectroscopic measurements.

URL:	http://link.aps.org/doi/10.1103/PhysRevA.74.062713
DOI:	10.1103/PhysRevA.74.062713
PACS:	34.80.Qb; 32.70.Jz; 32.80.Cy 34.80.Qb Laser-modified scattering (atoms and molecules) 32.70.Jz Atomic line shapes, widths, and shifts 32.80.Cy Atomic scattering, cross sections, and form factors including Compton scattering YEAR: 2006
KEYWORDS:	strontium, resonant states, atom-photon collisions, photochemistry, association, spectral line breadth

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