Bernard Derrida

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Bernard Derrida (* 1952 ) is a French theoretical physicist who deals with statistical physics .

Life

Derrida studied from 1971 at the École normal supérieure in Paris , where he received his DEA in theoretical physics in 1974 and his Agrégation (teaching degree) in the same year . In 1976 he received his diploma (Thèse de troisieme cycle) from the Research Institute of the Commissariat à l'énergie atomique (CEA) in Saclay (solution of a three-body problem: investigation of diffusion). In 1979 he received his doctorate at the Laue-Langevin Institute in Grenoble (Thèse d'Etat with disorder effects and frustration in magnetic systems, critical properties of the bifurcations of one-dimensional images). After his military service in 1979/79 he was a physicist at the Institute for Theoretical Physics in Saclay. Since 1993 he has been a professor at the University of Paris VI (Pierre et Marie Curie) and the École normal supérieure. Since 2007 he has been a member of the Institut universitaire de France .

In 1977 he received the Prix ​​Daniel Guinier of the Société française de physique and in 1985 its Prix ​​IBM . In 2001 he was awarded the Prix ​​Ampère of the Académie des Sciences , of which he has been a member since 2004. In 2010 he was able to receive the Boltzmann Medal together with John Cardy . For 2015 he was awarded the Prix ​​des trois physiciens .

Derrida dealt with dynamic systems (e.g. Julia set , investigation of the fractal structure of the zeros of the distribution function in hierarchical systems with Claude Itzykson ), localization, Lyapunov exponents , phase transitions, spin glasses and neural networks, disordered systems (where he proposed the Random Energy Model in 1980 ), non-equilibrium systems, theory of evolution, and other mathematical problems in biology.

In 2006 he was a guest speaker at the International Congress of Mathematicians in Madrid ( Matrix approach and large deviations of the density in exclusion processes ).

Fonts

  • Lattice gases (French), Pour la Science 1993 (French edition of Scientific American)
  • The random energy model , Physics Reports Vol. 67, 1980 Common trends in particle and condensed matter physics , Les Houches Lectures
  • Random energy model: limit of a family of disordered models , Physical Review Letters, Vol. 45, 1980, p. 79 (Random Energy Model)

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