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Quantum Chemistry

Bound states of two bosons in an optical lattice near an association resonance

arXiv
Authors: Jerome C. Sanders, Otim Odong, Juha Javanainen, Matt Mackie

Year

2010

Paper ID

10593

Status

Preprint

Abstract Read

~2 min

Abstract Words

104

Citations

N/A

Abstract

We model two bosons in an optical lattice near a Feshbach or photoassociation resonance, focusing on the Bose-Hubbard model in one dimension. Whereas the usual atoms-only theory with a tunable scattering length yields one bound state for a molecular dimer for either attractive or repulsive atom-atom interaction, an atom-molecule theory gives two bound states that may represent attractively and repulsively bound dimers occurring simultaneously. Such unusual molecular physics should be observable for an atom-molecule coupling strength comparable to the width of the dissociation continuum of the lattice dimer, for example, using narrow Feshbach resonances in Na, 87Rb, and 133Cs or low-intensity photoassociation in 174Yb.

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  • We model two bosons in an optical lattice near a Feshbach or photoassociation resonance, focusing on the Bose-Hubbard model in one dimension.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1011.0599 [2] arXiv https://arxiv.org/abs/1011.0599 [3] Publisher https://arxiv.org/abs/1011.0599

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