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Magneto-optics

Hot atoms rotate light rapidly

The ability to harness the Faraday effect on a short timescale in an ensemble of hot atoms may prove useful as a read-out tool for quantum information based on microscale vapour cells.

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Figure 1: Michael Faraday (1791–1876) with a slab of glass used in his famous discovery in 1845.

NATIONAL PORTRAIT GALLERY

Figure 2: Hot atoms for quantum computation?

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Löw, R., Pfau, T. Hot atoms rotate light rapidly. Nature Photon 3, 197–199 (2009). https://doi.org/10.1038/nphoton.2009.41

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