Spin, meet Photon. Photon, meet Spin


Many phenomena that we take for granted in the macroscopic world, like sun rays shining on dust particles suspended in air, or our image reflected in a mirror, become more complicated when we move to the quantum world. When instead of an intense and diffuse light beam we have a single photon, and when we want to shine it not anymore on a dust particle but on an Angstrom-sized object, things are not so straightforward. However, enhancing and exploiting the interaction between atomic-like quantum systems and single photons is a crucial task for quantum technologies: it allows to connect platforms that realise different quantum tasks, which enables long distance transmission of quantum information and, ultimately, makes a quantum internet possible. Read more

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