We show the full control of the polarization dynamics of a propagating exciton-polariton condensate in a planar microcavity by using a magnetic field applied in the Voigt geometry. The change of the spin-beat frequency, the suppression of the optical spin Hall effect and the rotation of the polarization pattern by the magnetic field are theoretically reproduced by accounting for the magneto-induced mixing of exciton-polariton and dark, spin forbidden, exciton states.
@article{arxiv.1812.01919,
title = {Magnetic control of polariton spin transport},
author = {Davide Caputo and Evgeny Sedov and Dario Ballarini and Mikhail Glazov and Alexey Kavokin and Daniele Sanvitto},
journal= {arXiv preprint arXiv:1812.01919},
year = {2020}
}