Prof. Jean Zinn-Justin
CEA, IRFU and Institut de Physique Théorique, Centre de Saclay, F-91191 Gif-sur-Yvette, France
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Featured Author: Jean Zinn-Justin
Dr. Zinn-Justin (b. 1943) attended École Polytechnique for his undergraduate degree, graduating in 1964. He continued his research under Marcel Froissart at the University of Orsay, earning a Ph.D. in 1968. While Zinn-Justin has had a permanent position with the CEA-Saclay theory group, he has also held visiting positions as SUNY Stony-Brook, CERN, Princeton, Harvard, and MIT.
Zinn-Justin is a recipient of the Gentner-Kastler prize and the Humboldt-Gay Lussac award. He has been the head editor of publications including Journal de Physique, and the Institute of Physics Journal of Physics A, along with membership on the editorial boards of other journals. He has directed the Les Houches summer school, the Theoretical Institute and subsequently the Institute of Research into the Fundamental Laws of the Universe (formerly, Dapnia), both in Saclay.
Zinn-Justin's research in quantum physics looks principally at quantum field theory and the renormalization group, especially at how they apply to particle physics and the statistical physics of phase transitions. In collaboration with B.W. Lee he presented the first proof of the renormalizability of gauge theories in the symmetry broken phase with respect to weak interactions.
- Gauge invariance (2008), Scholarpedia, 3(12):8287
- Path integral (2009), Scholarpedia, 4(2):8674
- Zinn-Justin equation (2009), Scholarpedia, 4(1):7120
- Critical_Phenomena:_field_theoretical_approach (in progress), Scholarpedia x(x):xxxx
(Author profile by Leo Trottier)
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Jean Zinn-Justin IRFU and IPhT, CEA Saclay, France
Jean Zinn-Justin graduated from Ecole Polytechnique (France) in 1964 and did his PhD thesis under the supervision of Marcel Froissart (University of Orsay, 1968).
He has a permanent position in the CEA-Saclay theory group since 1966, was postdoc in Stony-Brook (1971-1972), fellow at CERN, lecturer in Princeton and Harvard (Loeb lecturer) and Harris scholar at MIT. He has directed Les Houches school of Physics, the CEA-Saclay theoretical Institute (IPhT) and more recently the CEA Institute of Research into the fundamental Laws of the Universe (IRFU) also in Saclay. He has been part-time lecturer at Ecole Normale Supérieure de Paris, Université de Cergy-Pontoise and then Université de Paris 7. Presently, he is part-time professor at Shanghai University. He has also been the head editor of Journal de Physique, Journal of Physics A (IOP) and still belongs to the Board of the New Journal of Physics, Progress of Physics and Nuclear Physics.
His scientific interests centre around quantum field theory and renormalization group, and their applications to particle physics and the statistical physics of phase transitions. With Lee, he has given the first proof of the renormalizability of gauge theories in the symmetry broken phase, as relevant for weak interactions. With first Le Guillou and then Guida, he has derived the most precise estimates of critical exponents by field theoretical methods. He has also worked on the statistical properties of large random matrices. As technical tools, he has contributed to the field integral formulation of quantum field theory, to the understanding of the divergence of perturbation series by semi-classical methods (instantons) and to the development of methods to sum divergent series.
Selected articles and books