Andrzej Marek Kossakowski (20 February 1938 – 31 January 2021) was a Polish theoretical physicist and a professor at the Nicolaus Copernicus University.
[2] In 1966, he defended his PhD thesis titled On the entropy increase law in informational thermodynamics of density operators, written under the supervision of Roman Stanisław Ingarden during the scientific internship in the Institute of Theoretical Physics at the University of Wrocław in the academic year 1964/1965.
[2] In 1971, he was habilitated with a thesis titled Informational decision scheme in statistical quantum mechanics.
[2] Andrzej Kossakowski lectured at the universities in Stuttgart (1973) Austin (1974), Milan (1975), Essen (1989), Leuven (1991),[2] Naples, Santiago de Chile, and Tokyo.
[5] In 2019, Kossakowski received the Prize of the Foundation for Polish Science in the field of mathematics, physics, and engineering for his works on the theory of open quantum systems.