Jan Łopuszański (Polish:[janwɔˈpuʂaɲski]; 21 October 1923 – 30 April 2008) was a Polishtheoretical physicist and author of several textbooks about classical, statistical andquantum physics. In the field ofquantum field theory, he is most famous as co-author of theHaag–Lopuszanski–Sohnius theorem concerning the possibility ofsupersymmetry inrenormalizable QFT's.

Jan Łopuszański was born on 21 October 1923 in Lwów, Poland. During 1945-50 he studied physics at theUniversity of Wrocław. In 1950, he received his M.A. in Wrocław, in 1955 hisPh.D. at the Jagiellonian University in Cracow. Since 1947, he was part of regular staff member at the University of Wrocław. In 1968, he became a full professor.

During the years 1957–59, he was the vice dean and during the years 1962–65, was dean of the Faculty of Mathematics, Physics and Chemistry. From 1970 to 1984, he was director of the Institute of Theoretical Physics (Instytut Fizyki Teoretycznej Uniwersytet Wroclawski). From 1960 onward, he held the chair for mathematical methods in physics until he retired in 1994.

In 1976, he was elected a corresponding member and in 1986 permanent member of thePolish Academy of Sciences. In 1996, he became a corresponding member of the Poland Academy of Arts and Sciences in Cracow. He had visiting professorships inUtrecht,NYU,IAS inPrinceton, New Jersey,SUNY at Stony Brook,University of Göttingen,Bielefeld,Max Planck Institute in Munich,CERN in Geneva andICTP inTrieste. He was also member of the editor board ofReports on Mathematical Physics andFortschritte der Physik. He wrote about 80 original professional papers, 40 review articles and 5 major textbooks.

J. Łopuszański had a son named Maciej with Halina Pidek, and after divorcing her, was married to Barbara Zasłonka.His hobbies are reported to be baroque music and gardening.

On 30 April 2008 Jan Łopuszański died of aheart attack in his home in Wrocław.^[1]

• R. Haag, J. T. Lopuszanski and M. Sohnius, "All Possible Generators of Supersymmetries of the S Matrix", Nucl. Phys. B 88 (1975) 257.

Textbooks by J. Łopuszański:

• • Łopuszański, J., Pawlikowski A.:Fizyka Statystyczna, PWN Warszawa (1969).
  • Łopuszański, J.:An Introduction to the Conventional Quantum Field Theory, Wroclaw University (1976).
  • Łopuszański, J.:Rachunek Spinorow, PWN Warszawa (1985).
  • Łopuszański, J.:Introduction to Symmetry and Supersymmetry in Quantum Field Theory, World Scientific (1991)
  • Łopuszański, J.:The Inverse Variational Problem in Classical Mechanics, Eds. Word Scientific (1999)

• 1923 births
• 2008 deaths
• Jagiellonian University alumni
• 20th-century Polish physicists
• University of Wrocław alumni
• Academic staff of the University of Wrocław
• Theoretical physicists
• People associated with CERN
• Recipients of the Medal of the 10th Anniversary of the People's Republic of Poland

• CS1 Polish-language sources (pl)
• Articles with short description
• Short description is different from Wikidata
• Articles with hCards
• Pages with Polish IPA