Nature Communications (Mar 2020)

Quantum non-demolition readout of an electron spin in silicon

  • J. Yoneda,
  • K. Takeda,
  • A. Noiri,
  • T. Nakajima,
  • S. Li,
  • J. Kamioka,
  • T. Kodera,
  • S. Tarucha

DOI
https://doi.org/10.1038/s41467-020-14818-8
Journal volume & issue
Vol. 11, no. 1
pp. 1 – 7

Abstract

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Conventional qubit readout methods in silicon spin qubits destroy the quantum state, precluding any further computations based on the outcome. Here, the authors demonstrate quantum non-demolition readout using a second qubit of the same kind, making for a scalable approach.