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It has been theoretically predicted that light carrying orbital angularmomentum, or twisted light, can be tuned to have a strong magnetic-fieldcomponent at optical frequencies. We here consider the interaction of thesepeculiar fields with a semiconductor quantum dot and show that the magneticinteraction results in new types of optical transitions. In particular, asingle pulse of such twisted light can drive light-hole-to-conduction bandtransitions that are cumbersome to produce using conventional Gaussian beams oreven twisted light with dominant electric fields.

Magnetic-optical transitions induced by twisted light in quantum dots