Scientific article
Open access

Toward the Device-Independent Certification of a Quantum Memory

Published inPhysical review letters, vol. 131, no. 17, 170802
Publication date2023
First online date2023-10-26

Quantum memories represent one of the main ingredients of future quantum communication networks. Their certification is therefore a key challenge. Here we develop efficient certification methods for quantum memories. Considering a device-independent approach, where no a priori characterization of sources or measurement devices is required, we develop a robust self-testing method for quantum memories. We then illustrate the practical relevance of our technique in a relaxed scenario by certifying a fidelity of 0.87 in a recent solid-state ensemble quantum memory experiment. More generally, our methods apply for the characterization of any device implementing a qubit identity quantum channel.

  • Quantum communication
  • Network
  • Quantum memory
  • Qubit
  • Measurement theory
Research group
Citation (ISO format)
SEKATSKI, Pavel et al. Toward the Device-Independent Certification of a Quantum Memory. In: Physical review letters, 2023, vol. 131, n° 17, p. 170802. doi: 10.1103/PhysRevLett.131.170802
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Article (Published version)
ISSN of the journal0031-9007

Technical informations

Creation11/15/2023 8:36:30 AM
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