We extend the semiclassical description of two-state atomic collisions to low energies for which the impact parameter treatment fails. The problem reduces to solving a system of first-order differential equations with coefficients whose semiclassical asymptotes experience the Stokes phenomenon in the complex coordinate plane. Primitive semiclassical and uniform Airy approximations are discussed.
|Number of pages
|Proceedings Of The Royal Society Of London - Mathematical, Physical And Engineering Sciences
|Published - 08 Jun 2002
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