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Jonathan Barrett


Email: j.barrett (at) bristol.ac.uk

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Currently at the Theory Group at Bristol: his webpage can be found here.

Short biography

  • Born 1976.
  • In 1985, I obtained a certificate in basic donkey care.
  • 1994-1998 The Queen's College, Oxford. BA Physics and Philosophy.
  • 1998-1999 Trinity College, Cambridge. Part III of the Mathematical Tripos.
  • 1999-2002 Trinity College, Cambridge. PhD. Thesis title: Entanglement, Non-locality and Quantum Information Theory. Supervisor: Adrian Kent.
  • 2002-2004 Postdoctoral researcher at the Centre for Quantum Information and Computation, Universite Libre de Bruxelles.

Research interests

  • Quantum information theory, especially cryptography and aspects of non-locality. Quantum foundations.


  • J. Barrett, Implications of teleportation for nonlocality, Phys. Rev. A 64, 042305 (2001).
  • J. Barrett, Nonsequential positive-operator-valued measurements on entangled mixed states do not always violate a Bell inequality, Phys. Rev. A 65, 042302 (2002).
  • J. Barrett, D. Collins, L. Hardy, A. Kent and S. Popescu, Quantum nonlocality, Bell inequalities and the memory loophole, Phys. Rev. A 66, 042111 (2002).
  • J. Barrett, Countering quantum noise with supplementary classical information, Phys. Rev. A 68, 012303 (2003).
  • J. Barrett and S. Massar, Quantum coin tossing and bit-string generation in the presence of noise, Phys. Rev. A. 69, 022322 (2004).
  • J. Barrett and A. Kent, Noncontextuality, finite precision measurement and the Kochen-Specker theorem, Stud. Hist. Phil. Mod. Phys. 35, 151 (2004).
  • J. Barrett, N. Linden, S. Massar, S. Pironio, S. Popescu and D. Roberts, Non-local correlations as an information theoretic resource, Phys. Rev. A 71, 022101 (2005). e-print quant-ph/0404097, submitted to PRA.
  • J. Barrett, L. Hardy and A. Kent, No signalling and quantum key distribution, e-print quant-ph/0405101, Phys. Rev. Lett. 95, 010503 (2005)
  • J. Barrett and S. Massar, Security of bit-string generation, e-print quant-ph/0408120, Phys. Rev. A 70, 052310 (2004)
  • L.-P. Lamoureux, E. Brainis, D. Amans, J. Barrett and S. Massar, Provably secure experimental bit-string generation, e-print quant-ph/0408121, Phys. Rev. Lett. 94, 050503(4) (2005)