Long range scattering resonances in strong-field seeking states of polar molecules

Details Long range scattering resonances in strong-field seeking states of polar molecules Long range scattering resonances in strong-field seeking states of polar molecules

2005-06-10

arxiv.org/abs/physics/0506104v1

Physics

Atomic Physics

Scientific paper

10.1103/PhysRevA.72.032717

We present first steps toward understanding the ultracold scattering properties of polar molecules in strong electric field-seeking states. We have found that the elastic cross section displays a quasi-regular set of potential resonances as a function of the electric field, which potentially offers intimate details about the inter-molecular interaction. We illustrate these resonances in a ``toy'' model composed of pure dipoles, and in more physically realistic systems. To analyze these resonances, we use a simple WKB approximation to the eigenphase, which proves both reasonably accurate and meaningful. A general treatment of the Stark effect and dipolar interactions is also presented.

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