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SINGLE ION DETECTION

A rare quantum leap

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Single rare-earth ions are hard to observe and even harder to use as qubits. However, with the help of coupling to an optical cavity and clever engineering of selection rules, a big step has been taken to establish their new role in the quantum world.

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Fig. 1: Simplified energy level scheme of a rare earth ion.

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Authors and Affiliations

  1. 3. Physikalisches Institut, Universität Stuttgart, Stuttgart, Germany

    Roman Kolesov & Jörg Wrachtrup

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  1. Roman Kolesov
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  2. Jörg Wrachtrup
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Correspondence to Roman Kolesov or Jörg Wrachtrup.

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Kolesov, R., Wrachtrup, J. A rare quantum leap. Nat. Phys. 16, 503–504 (2020). https://doi.org/10.1038/s41567-020-0871-3

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