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Scientific article
Open access
English

Receiver-device-independent quantum key distribution protocols

Published inNew journal of physics, vol. 24, no. 6, 063006
Publication date2022-06-17
First online date2022-06-17
Abstract

We discuss quantum key distribution protocols and their security analysis, considering a receiver-device-independent (RDI) model. The sender’s (Alice’s) device is partially characterized, in the sense that we assume bounds on the overlaps of the prepared quantum states. The receiver’s (Bob’s) device requires no characterisation and can be represented as a black-box. Our protocols are therefore robust to any attack on Bob, such as blinding attacks. In particular, we show that a secret key can be established even when the quantum channel has arbitrarily low transmission by considering RDI protocols exploiting sufficiently many states. Finally, we discuss how the hypothesis of bounded overlaps can be naturally applied to practical devices.

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Keywords
  • QKD
  • Semi-device independent
  • Prepare and measure
  • Overlap
NoteUpdated to journal version. See also the companion paper where a proof-of-principle experiment is reported arXiv:2104.14574
Research group
Citation (ISO format)
IOANNOU, Marie Adrienne et al. Receiver-device-independent quantum key distribution protocols. In: New journal of physics, 2022, vol. 24, n° 6, p. 063006. doi: 10.1088/1367-2630/ac71bc
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Article (Published version)
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ISSN of the journal1367-2630
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