2019/03/31 by Ernest Y.-Z. Tan, Ernest Y. -Z. Tan, Charles Ci Wen Lim +2 · 1 citation
Chemistry · Computer Science · Mathematics · Physics and Astronomy · #Chemistry #Chromatography #Computer science #Computer security #Distillation #Distribution (mathematics) #Key (lock) #Mathematics #Physics #Quantum #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum cryptography #Quantum information #Quantum key distribution #Quantum mechanics #Statistical physics #quant-ph
paper · pdf · doi:10.1103/physrevlett.124.020502
published as Phys. Rev. Lett. 124, 020502 (2020) · [v2] Corrected threshold detection efficiency for one-way error correction, reorganised material. [v3] Updated funding information
openalex publication_date 2020/01/16 · arxiv created 2020/05/17 · arxiv updated 2020/05/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Device-independent quantum key distribution (DIQKD) offers the prospect of distributing secret keys with only minimal security assumptions, by making use of a Bell violation. However, existing DIQKD security proofs have low noise tolerances, making a proof-of-principle demonstration currently infeasible. We investigate whether the noise tolerance can be improved by using advantage distillation, which refers to using two-way communication instead of the one-way error correction currently used in DIQKD security proofs. We derive an efficiently verifiable condition to certify that advantage distillation is secure against collective attacks in a variety of DIQKD scenarios, and use this to show that it can indeed allow higher noise tolerances, which could help to pave the way towards an experimental implementation of DIQKD.