Work

Quantum key distribution protocol based on contextuality monogamy

Year: 2017

Type: article

Abstract: The security of quantum key distribution (QKD) protocols hinges upon features of physical systems that are uniquely quantum in nature. We explore the role of quantumness, as qualified by quantum contextuality, in a QKD scheme. A QKD protocol based on the Klyachko-Can-Binicio\ifmmode \breve{g}\else \u{g}\fi{}lu-Shumovsky (KCBS) contextuality scenario using a three-level quantum system is presented. We explicitly show the unconditional security of the protocol by a generalized contextuality monogamy relationship based on the no-disturbance principle. This protocol provides a new framework for QKD which has conceptual and practical advantages over other protocols.

Source: Physical Review A

DOI: 10.1103/physreva.95.062333

Authors: Jaskaran Singh, Kishor Bharti, Arvind

Institution: Indian Institute of Science Education and Research Mohali

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

Funders: Department of Science and Technology, Republic of South Africa, Department of Science and Technology, Ministry of Science and Technology, India

Award: G8347416488