2006/10/13 by S. Gaertner, Sascha Gaertner, Christian Kurtsiefer +5
Computer Science · Physics and Astronomy · #Computer science #Computer security #Cryptography #Physics #Quantum #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum mechanics #Secret sharing #quant-ph
paper · pdf · doi:10.1103/physrevlett.98.020503
published as Phys. Rev. Lett. 98, 020503 (2007)
arxiv created 2006/10/13 · openalex publication_date 2007/01/12 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Secret sharing is a multiparty cryptographic task in which some secret information is split into several pieces which are distributed among the participants such that only an authorized set of participants can reconstruct the original secret. Similar to quantum key distribution, in quantum secret sharing, the secrecy of the shared information relies not on computational assumptions, but on laws of quantum physics. Here, we present an experimental demonstration of four-party quantum secret sharing via the resource of four-photon entanglement.