# Generalized multichannel optical theorem: Coherent control of the total scattering cross section

@inproceedings{Adrien2022GeneralizedMO, title={Generalized multichannel optical theorem: Coherent control of the total scattering cross section}, author={Devolder Adrien and V. TscherbulTimur and Brumer Paul}, year={2022} }

The optical theorem is a fundamental aspect of quantum scattering theory. Here, we generalize this theorem to the case where the incident scattering state is a superposition of internal states of the collision partners, introducing additional interference contributions and, e.g., providing a route to control the total integral cross section. As in its standard form, forward scattering plays an essential role in the generalized optical theorem, but with interference terms being related to the…

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