Nature Communications (Jun 2017)

A decoherence-free subspace in a charge quadrupole qubit

  • Mark Friesen,
  • Joydip Ghosh,
  • M. A. Eriksson,
  • S. N. Coppersmith

DOI
https://doi.org/10.1038/ncomms15923
Journal volume & issue
Vol. 8, no. 1
pp. 1 – 7

Abstract

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Robust implementations of semiconducting qubits require overcoming the effects of charge noise, which limits coherence times. Here the authors propose a decoherence-free subspace for charge qubits to protect them from uniform electric field fluctuations, proposing an implementation in a triple quantum dot.