John Chalker

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John T. Chalker (* 1956 ) is a British theoretical physicist.

Chalker studied physics at Cambridge University with a bachelor's degree in 1978 and received his doctorate in 1981 from the University of Oxford . As a post-doctoral student he was at the University of Heidelberg . In 1983 he became a lecturer at the University of Southampton and since 1991 he has taught at Oxford, where he is Professor and Tutorial Fellow at St. Hugh's College.

He deals with theoretical solid-state physics, including the integer quantum Hall effect (where he developed the network model), disordered conductors ( Anderson localization ), geometrically frustrated magnets and quantum systems far from equilibrium.

In 2000 he was Mott Lecturer at the Institute of Physics, received a Humboldt Research Award in 2000 , the Rayleigh Medal in 2008 and the Dirac Medal in 2018 . He received the Rayleigh Medal for important and innovative contributions to solid state physics, in particular exotic quantum phenomena (laudation). In particular, his network model for the quantum Hall effect was highlighted, which captured the essence of the phenomenon in a simple way so that this could also be transferred to other solid-state phenomena, and studies on the transition from two- to three-dimensional systems, where layers of two-dimensional systems create a chiral metal with charges circulating on the surface. He also predicted special charge density waves in the quantum Hall effect that were later observed.

Fonts (selection)

  • with PD Coddington: Percolation, quantum tunneling and the integer Quantum Hall Effect, J. Phys. C, Vol. 21, 1988, pp. 2665-2679
  • with DKK Lee: A Unified Model for Two Localization Problems: Electron States in Spin-Degenerate Landau Levels, and in a Random Magnetic Field, Phys. Rev. Lett., Vol. 72, 1994, p. 1510, Arxiv
  • with C.-M. Ho: Models for the integer quantum Hall effect: the network model, the Dirac equation, and a tight-binding Hamiltonian, Phys. Rev. B, Vol. 54, 1996, p. 8708, Arxiv
  • with R. Moessner: Exact results for interacting electrons in high Landau levels, Phys. Rev. B, Vol. 54, 1996, p. 5006, Arxiv
  • with R. Moessner: Properties of a Classical Spin Liquid: The Heisenberg Pyrochlore Antiferromagnet, Phys. Rev. Lett., Vol. 80, 1998, p. 2929, Arxiv
  • with Kagalovsky, Horovitz, Avishai: Quantum Hall plateau transitions in disordered superconductors, Phys. Rev. Lett., Vol. 82, 1999, p. 3516, Arxiv
  • with JJ Betouras: The effects of interactions and disorder in the two-dimensional chiral metal, Phys. Rev. B, Vol. 62, 2000, p. 10931, Arxiv
  • with S. Powell: SU (2) -invariant continuum theory for an unconventional phase transition in a three-dimensional classical dimer model. Phys. Rev. Lett., Vol. 101, 2008, p. 155702, Arxiv
  • Geometrically Frustrated Antiferromagnets: Statistical Mechanics and Dynamics, in: Claudine Lacroix, Philippe mendels, Frederic Mila (Eds.), Introduction to Frustrated Magnetism: Materials, Experiments, Theory, Springer 2011, Arxiv
  • with Knolle, Kovrizhin, Moessner: Dynamics of a Two-Dimensional Quantum Spin Liquid: Signatures of Emergent Majorana Fermions and Fluxes, Phys. Rev. Lett., Volume 112, 2014, p. 207203, Arxiv

Web links

Individual evidence

  1. ^ Symposium in honor of John Chalker's 60th birthday, 2016
  2. ↑ Rayleigh Medal for Chalkers
personal data
SURNAME Chalker, John
ALTERNATIVE NAMES Chalker, John T.
BRIEF DESCRIPTION British physicist
DATE OF BIRTH 1956