Misha Stepanov | publications | Phys. Rev. Lett. (2005)

A. Piryatinski, M. Stepanov, S. Tretiak, V. Chernyak, Semiclassical scattering on conical intersections, Physical Review Letters 95 (22) 223001 (2005).

DOI: 10.1103/PhysRevLett.95.223001
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We apply a semiclassical approach to the scattering problem of a vibrational wave packet in the vicinity of a conical intersection of electronic energy surfaces and derive analytical expressions for the scattering matrix. The latter are valid when the scattering length that scales as sqrt(ℏ) is small and a wave packet passes through the scattering region with a constant velocity. The analytical results are in excellent agreement with numerical simulations for a realistic set of parameters.