Quantum secret sharing with polarization-entangled photon pairs
Journal Article
·
· Physical Review A
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Quantum Information Science Group, Computational Sciences and Engineering Division
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Quantum Information Science Group, Computational Sciences and Engineering Division; Univ. of Tennessee, Knoxville, TN (United States). Bredesen Center for Interdisciplinary Research and Graduate Education
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Quantum Information Science Group, Computational Sciences and Engineering Division; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy
Here, we describe and experimentally demonstrate a more practical three-party quantum secret sharing (QSS) protocol using polarization-entangled photon pairs. The source itself serves as an active participant and can switch between the required photon states by modulating the pump beam only, thereby making the protocol less susceptible to loss and amenable to fast switching. We derive a security proof based on quantum key distribution, demonstrating our QSS protocol to be secure against both eavesdropping and dishonest participants. Compared to three-photon protocols, the practical efficiency is dramatically improved as there is no need to generate, transmit, or detect a third photon.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE; USDOE Office of Electricity Delivery and Energy Reliability (OE)
- Grant/Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1528726
- Journal Information:
- Physical Review A, Journal Name: Physical Review A Journal Issue: 6 Vol. 99; ISSN PLRAAN; ISSN 2469-9926
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Quantum secret sharing using weak coherent states
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journal | August 2019 |
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