Krzysztof Gawedzki Explained

Krzysztof Gawędzki
Birth Date:July 2, 1947
Birth Place:Żarki, Poland
Death Place:Lyon, France
Nationality:Polish
Field:Mathematics, Physics
Education:University of Warsaw
Known For:Research on quantum field theory, statistical physics and conformal field theory
Prizes:Dannie Heineman Prize for Mathematical Physics (2022)

Krzysztof Gawędzki (Polish pronunciation: ;[1] born 2 July 1947 – died 21 January 2022) was a Polish[2] [3] mathematical physicist, a graduate of the University of Warsaw and professor at the École normale supérieure de Lyon (ENS de Lyon). He was primarily known for his research on quantum field theory and statistical physics.[4] In 2022, he shared the Dannie Heineman Prize for Mathematical Physics with Antti Kupiainen.

Education and career

Born in Poland, Gawędzki received in 1971 his doctorate from the University of Warsaw.[5] His doctoral dissertation Functional theory of geodesic fields was supervised by Krzysztof Maurin (1923–2017).

In the 1980s Gawędzki did research at CNRS at the IHES near Paris. Since the 1990s, he was a professor at the École normale supérieure de Lyon (ENS de Lyon), and later an emeritus researcher there.[6]

He was known for his research in the mathematics of quantum field theory (QFT), especially conformal field theory.[7] In the 1980s he collaborated with Antti Kupiainen on the application of the renormalization group method in the rigorous mathematical treatment of various model systems of quantum field theory.[8] [9] Much of their research deals with conformal field theories, which serve as two-dimensional toy models of non-perturbative aspects of QFT (with applications to string theory and statistical mechanics). Gawędzki and collaborators studied the geometry of WZW models (also called WZNW models, Wess-Zumino-Novikov-Witten models), prototypes for rational conformal field theories.[10] [11] [12] [13]

With Kupiainen he succeeded in the 1980s in the rigorous construction of the massless lattice

4
\phi
4
model in four dimensions and the Gross-Neveu model in two space-time dimensions.[14] [15] At about the same time, this was achieved by Roland Sénéor, Jacques Magnen, Joel Feldman and Vincent Rivasseau. This was considered an outstanding achievement in constructive quantum field theory.

In 1986 Gawędzki[16] identified the Kalb–Ramond field (B field), which generalizes the electromagnetic field from point particles to strings, as a degree-3 cocycle in the Deligne cohomology model.[17]

In the 2000s he did research on turbulence,[18] partly in collaboration with Kupiainen. In 1995 Gawędzki and Kupiainen demonstrated anomalous scaling behavior of scalar advection in random vector field models of homogeneous turbulence.[19]

From January to June 2003 he was at the Institute for Advanced Study.[5] In 1986 he was invited speaker with talk Renormalization: from magic to mathematics at the International Congress of Mathematicians in Berkeley.[20] In 2007 at ENS de Lyon a conference on mathematical physics was held in honor of his 60th birthday.[21] In 2017 at the University of Nice Sophia Antipolis a conference on mathematical physics was held in honor of his 70th birthday.[22]

On 24 November 2021, the American Institute of Physics and the American Physical Society announced Krzysztof Gawędzki and Antti Kupiainen as the recipients of the 2022 Dannie Heineman Prize for Mathematical Physics.[23] They were recognized for their "fundamental contributions to quantum field theory, statistical mechanics, and fluid dynamics using geometric, probabilistic, and renormalization group ideas."[24]

He died in Lyon, France on 21 January 2022, at the age of 74.[25]

Selected publications

External links

Notes and References

  1. The Polish pronunciation of "Gawędzki" is similar to that of "Gawendzki" — because of the pronunciation of the Polish letter ę.
  2. Web site: Krzysztof Gawędzki, Antti Kupiainen Share 2022 Dannie Heineman Prize for Mathematical Physics . aip.org . 16 April 2023.
  3. Web site: Zmarł Krzysztof Gawędzki, jeden z najwybitniejszych polskich fizyków matematycznych [Wspomnienie] ]. pl . wyborcza.pl . 22 January 2022 . 16 April 2023.
  4. Web site: Homage to Krzysztof Gawedzki . ens-lyon.fr . 24 January 2022 . 16 April 2023.
  5. Web site: Krzysztof Gawedzki. Institute for Advanced Study. 9 December 2019.
  6. Web site: Krzysztof Gawedzki, Thermodynamics of Fluctuations in Fast Processes. 4 February 2016. ICFO Colloquia. 13 August 2021. 29 January 2022. https://web.archive.org/web/20220129113620/https://icfo.eu/calendar2?event=2960. dead.
  7. Web site: Krzysztof Gawedzki. nLab.
  8. Gawędzki, K.. Kupiainen, A.. Renormalizing the nonrenormizable. Phys. Rev. Lett.. 55. 1985. 4. 363–3365. 10.1103/PhysRevLett.55.363. 10032331. 1985PhRvL..55..363G.
  9. Renormalization of a non-renormalizable quantum field theory. 10.1016/0550-3213(85)90062-8. 1985. Gawȩdski. K.. Kupiainen. A.. Nuclear Physics B. 262. 1. 33–48. 1985NuPhB.262...33G.
  10. Felder, G.. Giovanni Felder. Gawędzki, K.. Kupiainen, A.. Spectra of WZW models with arbitrary simple group. Communications in Mathematical Physics. 117. 1988. 127–158. 10.1007/BF01228414. 119767773.
  11. 10.1016/0370-2693(88)91081-7. G/H conformal field theory from gauged WZW model. 1988. Gawędzki. K.. Kupiainen. A.. Physics Letters B. 215. 1. 119–123. 1988PhLB..215..119G.
  12. 10.1016/0550-3213(89)90015-1. Coset construction from functional integrals. 1989. Gawędzki. K.. Kupiainen. A.. Nuclear Physics B. 320. 3. 625–668. 1989NuPhB.320..625G.
  13. hep-th/9904145. Gawedzki. Krzysztof. Conformal field theory: A case study. 1999.
  14. 10.1007/BF01212281. Massless lattice
    4
    \phi
    4
    theory: Rigorous control of a renormalizable asymptotically free model. 1985. Gawedzki. K.. Kupiainen. A.. Communications in Mathematical Physics. 99. 2. 197–252. 121722023.
  15. 10.1007/BF01208817. Gross-Neveu model through convergent perturbation expansions. 1985. Gawędzki. K.. Kupiainen. A.. Communications in Mathematical Physics. 102. 1. 1–30. 1985CMaPh.102....1G. 122720270.
  16. Book: 10.1007/978-1-4613-0729-7_5. Topological Actions in Two-Dimensional Quantum Field Theories. In: Gerard t'Hooft, Arthur Jaffe, G. Mack, Peter Mitter, Raymond Stora (eds.), Nonperturbative Quantum Field Theory, Cargèse Lectures 1987. NATO ASI Series. 1988. Gawędzki. K.. 185. 101–141. 978-1-4612-8053-8.
  17. Web site: Kalb-Ramond Field. nLab.
  18. chao-dyn/9610003. Gawedzki. Krzysztof. Turbulence under a magnifying glass. 1996.
  19. chao-dyn/9506010. 10.1103/PhysRevLett.75.3834. Anomalous Scaling of the Passive Scalar. 1995. Gawedzki. Krzysztof. Kupiainen. Antti. Physical Review Letters. 75. 21. 3834–3837. 10059743. 1995PhRvL..75.3834G. 14446225.
  20. Book: Gawędzki, K.. Proceedings. Renormalization: from magic to mathematics. 1986. 2. 1278–1285.
  21. Web site: "Fields, Fluids & Branes", Conference on Mathematical Physics on the Occasion of the 60th Birthday of Krzysztof Gawędzki. 2007. École Normale Supérieure de Lyon, France.
  22. Web site: From Field Theory to Non-Equilibrium, Conference on Mathematical Physics in honour of Krzysztof Gawędzki on the occasion of his 70th birthday. 2017.
  23. Web site: Krzysztof Gawędzki, Antti Kupiainen Share 2022 Dannie Heineman Prize for Mathematical Physics. 24 November 2021.
  24. Web site: 2022 Dannie Heineman Prize for Mathematical Physics Recipient . aps.org . 16 April 2023.
  25. News: Décès de Krzysztof Gawędzki (1947 – 2022) . 26 January 2022 . IHES . 25 January 2022.

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