Artur Konrad EKERT
DPhil, University of Oxford, UK (1991)
Research Professor

Email: phyeak@nus.edu.sg
Office: S15-03-08
Tel: +65 6516 8457

Current Research

  • My research extends over most aspects of information processing in quantum-mechanical systems. It is a cross-disciplinary field bringing together theoretical and experimental quantum physics, computer science and information theory. Its scope ranges from deep fundamental issues in physics to prospective commercial exploitation by the computing and communications industries.
  • My work is mostly theoretical but its results also bear directly on issues of experimental implementation. One reason why it has attracted attention from industry and government agencies is that quantum cryptography can guarantee perfectly secure communication. Another is that projected quantum computers will be capable of efficiently solving some problems (including factorisation, which has a bearing on cryptanalysis) for which there is believed to be no efficient classical algorithm.

Selected Publications

  • Security Analysis of Quantum Key Distribution with Small Block Length and Its Application to Quantum Space Communications.
    Lim, C; Xu, F; Pan, J; Ekert, A
    Physical review letters issue 10 volume 126 page 100501- (March 2021)
  • Entanglement-based secure quantum cryptography over 1,120 kilometres
    Yin, J; Li, Y; Liao, S; Yang, M; Cao, Y; Zhang, L; Ren, J; Cai, W; Liu, W; Li, S; Shu, R; Huang, Y; Deng, L; Li, L; Zhang, Q; Liu, N; Chen, Y; Lu, C; Wang, X; Xu, F; Wang, J; Peng, C; Ekert, A; Pan, J
    Nature volume 582 page 501-505 (15 June 2020)
  • Quantum principle of relativity
    Dragan, A; Ekert, A
    New Journal of Physics issue 3 volume 22 (17 February 2020)
  • The power of independence
    Ekert, A
    NATURE PHYSICS issue 2 volume 14 page 114-115 (February 2018)
  • Artur Ekert and Renato Renner, The ultimate physical limits of privacy, Nature 507, 443–447 (27 March 2014).

Affiliations & Links

  • Lee Kong Chian Centennial Professor
  • FRS