A quantum-information physicist whose entanglement-based cryptography proposal connected secure communication with Bell’s theorem, alongside institution-building work at Singapore’s Centre for Quantum Technologies.
University of OxfordPhysical Review LettersUniversity of OxfordEkert’s work helped make entanglement useful as a resource for communication. His 1991 proposal linked quantum key distribution to Bell’s theorem, giving a new way to reason about the security of shared keys. His role as founding director of the Centre for Quantum Technologies also contributed to the field’s research capacity. The combination illustrates how a foundational idea can shape a technical discipline and the institutions that support its development.
University of OxfordPhysical Review LettersUniversity of OxfordDefining contributions
Work, in context- 1991
Entanglement-based quantum cryptography
Ekert proposed a quantum-key-distribution scheme based on entangled particles and Bell’s theorem. Correlations between measurement results provide a way to detect interference with the shared quantum resource, linking a foundational physics test to secure communication.
Author of the 1991 entanglement-based quantum-cryptography proposal.
Source-supported recordPhysical Review Letters - Year not documented
Founding the Centre for Quantum Technologies
Ekert served as founding director of Singapore’s Centre for Quantum Technologies. Oxford’s account of his work identifies this institution-building contribution alongside his research in quantum cryptography and quantum information.
Historical founding director of the Centre for Quantum Technologies, as documented by Oxford.
Source-supported recordUniversity of Oxford
Keep in perspective
The Singapore founding directorship is historical; no current directorship is asserted.
Follow the evidence
3 sourcesPrimary papers, institutional records and attributed announcements. Each source supports the claims linked above.
- University of Oxfordinstitutional biography
Artur Ekert
Current professor identification and research fields.
Checked 2026-09-19 - Physical Review Lettersprimary research
Quantum cryptography based on Bell’s theorem
1991 entanglement-based cryptographic proposal.
Published 1991-08-05 · Checked 2026-09-19 - University of Oxfordinstitutional news
Artur Ekert awarded Royal Society Milner Award
Founding directorship of CQT and entanglement-based cryptography.
Published 2023-08-30 · Checked 2026-09-19