Claude Itzykson

Separated from his parents by World War II, his father was taken to a Nazi concentration camp and Itzykson is raised in a Jewish orphanage in Maisons-Laffitte. After studying at the Lycée Condorcet Itzykson graduated from the Ecole Polytechnique in 1959. He joined the Theoretical Physics Department of the CEA in Saclay in 1962, then headed by Claude Bloch. He spent most of his career at Saclay, except for numerous visiting positions he held throughout his working life, such as at the Institute for Advanced Study, Princeton.{{cite web | title=Claude Itzykson | website=Institute for Advanced Study | url=https://www.ias.edu/scholars/claude-itzykson | access-date=5 November 2018}}

He was a specialist in quantum field theory and applications of group theory in physics.{{cite book |last1=Itzykson |first1=Claude |last2=Drouffe |first2=Jean-Michel |last3=Zuber |first3=Jean Bernard |title=The mathematical beauty of physics : a memorial volume for Claude Itzykson |date=1997 |publisher=World Scientific |location=Singapore |isbn=978-9810228071|lccn=97003545|oclc=36260869}} In particular, he worked on the symmetries of the hydrogen atom,{{harvp|Bander|Itzykson|1966}} the discretization of network gauge theories,See for example {{harvs|txt|last=Balian|last2=Drouffe|last3=Itzykson|year=1974|year2=1975}} & {{harvp|Drouffe|Itzykson|1978}} the integrals on large matricesSee for example {{harvp|Brézin|Itzykson|Parisi|Zuber|1993}} and {{harvp|Itzykson|Zuber|1980b}} and their applications to problems of combinatorics{{harvp|Bessis|Itzykson|Zuber|1980}} and physics of random surfaces,{{harvp|Drouffe|Itzykson|1984}} and conformal field theories and their classification.{{harvp|Itzykson|Drouffe|1989b}}

His first works were done in collaboration with Maurice Jacob and Raymond Stora. In 1980 he published a treatise on quantum field theory with Jean-Bernard Zuber that became a staple textbook on the subject.{{harvp|Itzykson|Zuber|1980}}

In 1995 Itzykson received the Ampère Prize of the French Academy of Sciences.

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• {{cite book|last1=Itzykson|first1=C.|last2=Zuber|first2=J.-B.|title=Quantum Field Theory|date=1980|publisher=Dover Publications|location=Mineola, New York|isbn=978-0486445687|edition=2005|url=https://books.google.com/books?id=4MwsAwAAQBAJ|lccn=2005053026|oclc=61200849}}
• {{cite book |last1=Itzykson |first1=C. |last2=Drouffe |first2=J.-M. |title=Statistical Field Theory Volume 1. From Brownian Motion to Renormalization and Lattice Gauge Theory. |date=1989a |publisher=Cambridge University Press |location=Cambridge |isbn=0-521-34058-6|oclc=852124007|lccn=88030162}}
• {{cite book |last1=Itzykson |first1=C. |last2=Drouffe |first2=J.-M. |title=Statistical Field Theory Volume 2. Strong coupling, Monte Carlo Methods, Conformal Field Theory, and Random Systems. |date=1989b |publisher=Cambridge University Press |location=Cambridge |isbn=0-521-37012-4|oclc=852124007|lccn=88030162}}

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• {{cite journal|last1=Balian|first1=R.|authorlink1=Roger Balian|last2=Drouffe|first2=J. M.|last3=Itzykson|first3=C.|title=Gauge fields on a lattice. I. General outlook|journal=Physical Review D|volume=10|issue=10|year=1974|pages=3376–3395|issn=0556-2821|doi=10.1103/PhysRevD.10.3376|bibcode=1974PhRvD..10.3376B}}
• {{cite journal|last1=Balian|first1=R.|authorlink1=Roger Balian|last2=Drouffe|first2=J. M.|last3=Itzykson|first3=C.|title=Gauge fields on a lattice. II. Gauge-invariant Ising model|journal=Physical Review D|volume=11|issue=8|year=1975|pages=2098–2103|issn=0556-2821|doi=10.1103/PhysRevD.11.2098|bibcode=1975PhRvD..11.2098B}}
• {{cite journal|last1=Bander|first1=M.|last2=Itzykson|first2=C.|title=Group Theory and the Hydrogen Atom (I)|journal=Reviews of Modern Physics|volume=38|issue=2|year=1966|pages=330–345|issn=0034-6861|doi=10.1103/RevModPhys.38.330|bibcode=1966RvMP...38..330B|url=http://inspirehep.net/record/48744/files/slac-pub-0120.pdf}}
• {{cite journal|last1=Bauer|first1=M.|last2=Di Francesco|first2=Ph.|last3=Itzykson|first3=C.|last4=Zuber|first4=J.-B.|title=Covariant differential equations and singular vectors in virasoro representations|journal=Nuclear Physics B|volume=362|issue=3|year=1991|pages=515–562|issn=0550-3213|doi=10.1016/0550-3213(91)90541-5|bibcode=1991NuPhB.362..515B|url=https://www.lpthe.jussieu.fr/~zuber/MesPapiers/bdfiz_NP91.pdf}}
• {{cite journal|last1=Bessis|first1=D|last2=Itzykson|first2=C|last3=Zuber|first3=J.B|s2cid=31392310|title=Quantum field theory techniques in graphical enumeration|journal=Advances in Applied Mathematics|volume=1|issue=2|year=1980|pages=109–157|issn=0196-8858|doi=10.1016/0196-8858(80)90008-1|doi-access=free}}
• {{cite journal|last1=Brezin|first1=E.|authorlink1=Édouard Brézin|last2=Itzykson|first2=C.|title=Pair Production in Vacuum by an Alternating Field|journal=Physical Review D|volume=2|issue=7|year=1970|pages=1191–1199|issn=0556-2821|doi=10.1103/PhysRevD.2.1191|bibcode=1970PhRvD...2.1191B}}
• {{cite journal|last1=Brézin|first1=E.|authorlink1= Édouard Brézin|last2=Itzykson|first2=C.|last3=Zinn-Justin|first3=J.|authorlink3=Jean Zinn-Justin|last4=Zuber|first4=J.-B.|title=Remarks about the existence of non-local charges in two-dimensional models|journal=Physics Letters B|volume=82|issue=3–4|year=1979|pages=442–444|issn=0370-2693|doi=10.1016/0370-2693(79)90263-6|bibcode=1979PhLB...82..442B|url=https://www.lpthe.jussieu.fr/~zuber/MesPapiers/bizjz_PL79.pdf}}
• {{cite journal|last1=Brézin|first1=E.|authorlink1=Édouard Brézin|last2=Gross|first2=David J.|authorlink2=David Gross|last3=Itzykson|first3=C.|title=Density of states in the presence of a strong magnetic field and random impurities|journal=Nuclear Physics B|volume=235|issue=1|year=1984|pages=24–44|issn=0550-3213|doi=10.1016/0550-3213(84)90146-9|bibcode=1984NuPhB.235...24B}}
• {{cite book|last1=Brézin|first1=E.|title=The Large N Expansion in Quantum Field Theory and Statistical Physics|last2=Itzykson|first2=C.|last3=Parisi|first3=G.|last4=Zuber|first4=J. B.|chapter=Planar Diagrams|year=1993|pages=567–583|doi=10.1142/9789814365802_0036|isbn=978-981-02-0455-6}}
• {{cite journal|last1=Derrida|first1=B.|authorlink1=Bernard Derrida|last2=De Seze|first2=L.|last3=Itzykson|first3=C.|title=Fractal structure of zeros in hierarchical models|journal=Journal of Statistical Physics|volume=33|issue=3|year=1983|pages=559–569|issn=0022-4715|doi=10.1007/BF01018834|bibcode=1983JSP....33..559D|url=http://www.lps.ens.fr/~derrida/PAPIERS/1983/jsp83-zero.pdf|citeseerx=10.1.1.496.2573|s2cid=122632661}}
• {{Cite book|last1=Drouffe|first1=J. M.|title=Facts and Prospects of Gauge Theories|last2=Itzykson|first2=C.|year=1978|pages=203–204|doi=10.1007/978-3-7091-8538-4_5|isbn=978-3-7091-8540-7}}
• {{cite journal|last1=Drouffe|first1=J. M.|last2=Itzykson|first2=C.|title=Random geometry and the statistics of two-dimensional cells|journal=Nuclear Physics B|volume=235|issue=1|year=1984|pages=45–53|issn=0550-3213|doi=10.1016/0550-3213(84)90147-0|bibcode=1984NuPhB.235...45D}}
• {{cite journal|last1=Itzykson|first1=C.|last2=Zuber|first2=J.-B.|title=The planar approximation. II|journal=Journal of Mathematical Physics|volume=21|issue=3|year=1980b|pages=411–421|issn=0022-2488|doi=10.1063/1.524438|url=http://www.lpthe.jussieu.fr/~zuber/MesPapiers/bipz_CMP78.pdf|bibcode=1980JMP....21..411I}}
• {{cite journal|last1=Itzykson|first1=C.|last2=Pearson|first2=R.B.|last3=Zuber|first3=J.B.|title=Distribution of zeros in Ising and gauge models|journal=Nuclear Physics B|volume=220|issue=4|year=1983|pages=415–433|issn=0550-3213|doi=10.1016/0550-3213(83)90499-6|bibcode=1983NuPhB.220..415I|url=https://www.lpthe.jussieu.fr/~zuber/MesPapiers/ipz_NP83.pdf}}
• {{cite journal|last1=Itzykson|first1=C.|title=Ising fermions (I). Two dimensions|journal=Nuclear Physics B|volume=210|issue=4|year=1982a|pages=448–476|issn=0550-3213|doi=10.1016/0550-3213(82)90173-0|bibcode=1982NuPhB.210..448I}}
• {{cite journal|last1=Itzykson|first1=C.|title=Ising fermions (II). Three dimensions|journal=Nuclear Physics B|volume=210|issue=4|year=1982b|pages=477–498|issn=0550-3213|doi=10.1016/0550-3213(82)90174-2|bibcode=1982NuPhB.210..477I}}
• {{Cite book|last1=Itzykson|first1=C.|title=Perspectives on Solvable Models|year=1995|pages=255–276|doi=10.1142/9789812831279_0017|chapter-url=https://www.ipht.fr/Docspht/articles/t94/001/public/publi.pdf|isbn=978-981-02-2107-2|chapter=Counting Rational Curves on Rational Surfaces}}

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