Ian C. Percival

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Ian Colin Percival (* 1931 ) is a British theoretical physicist. He was Professor of Applied Mathematics at Queen Mary and Westfield College, University of London .

In the early 1970s he was a pioneer of quantum chaos by suggesting that the spectra of quantum mechanical systems that correspond to classical chaos differ from those of classical regular systems.In 1987, together with Franco Vivaldi, he applied the algebraic number theory of quadratic number fields to the counting of periodic orbits in discrete chaotic dynamic systems ( Vladimir Arnold's cat picture ). Later he dealt with the basics of quantum mechanics and the measurement process. Together with Walter Strunz, he proposed that properties of quantum foam on the Planck scale (similar to the movement of particles due to Brownian movement) are reflected in the wave function of atomic beam interference.

In 1985 he received the Naylor Prize and in 1999 the Dirac Medal (IOP) . He is a Fellow of the Royal Society .

Fonts

  • with Derek Richards: Introduction to Dynamics , Cambridge University Press 1982
  • Chaos: A Science for the Real World , in Nina Hall (Editor) The New Scientist Guide to Chaos , Penguin 1992 (also New Scientist, October 21, 1989)
  • Quantum State Diffusion, Cambridge University Press 1998
  • with Nicolas Gisin The Quantum-State Diffusion Model applied to Open Systems , Journal of Physics A, Volume 25, 1992, pp. 5677-91
  • Editor with P. Cvitanović, A. Wirzba: Quantum Chaos- Quantum Measurement , Kluwer 1992 (therein by Percival: Quantum Records )
  • Editor with Michael Berry , Nigel Oscar Weiss Dynamical Chaos , Royal Society London 1987, Princeton University Press 1989 (Royal Society Discussion Meeting February 4-5, 1987)
    • Proc. Roy. Soc., A, Volume 413, 1987 (therein by Percival Chaos in Hamiltonian Systems , p. 131)
  • Integrable and nonintegrable Hamiltonian systems , in Non-linear dynamics aspects of particle accelerators , Lecture Notes in Phys, Volume 247, 1986, pp. 12-36

Individual evidence

  1. Percival Regular and irregular spectra , J. Phys. B, Volume 6, 1973, L 229-232
  2. Percival, Vivaldi Arithmetical properties of strongly chaotic motion , Physica D, Volume 25, 1987, p. 105
  3. Percival, Strunz Detection of space-time fluctuations by a model matter interferometer , Proc. Roy. Soc., A, 453, 1997, pp. 431-446. Percival Atom interferometry, spacetime and reality , Physics World, March 1997