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American Physical Society, Physical Review A, 5(84)

DOI: 10.1103/physreva.84.051402

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Optically induced conical intersections in traps for ultracold atoms and molecules

Journal article published in 2011 by Alisdair O. G. Wallis, Jeremy M. Hutson ORCID
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This paper is available in a repository.

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Abstract

We show that conical intersections can be created in laboratory coordinates by dressing a parabolic trap for ultracold atoms or molecules with a combination of optical and static magnetic fields. The resulting ring trap can support single-particle states with half-integer rotational quantization and many-particle states with persistent flow. Two well-separated atomic or molecular states are brought into near-resonance by an optical field and tuned across each other with an inhomogeneous magnetic field. Conical intersections occur at the nodes in the optical field.