Kazimierz Rzazewski is a theoretical physicist, educated at the University of Warsaw. He gained international experience working in the USA, Germany, Spain and Belgium. Since 1980, he is a Professor at the Center for Theoretical Physics of the Polish Academy of Sciences. His research interests are in quantum optics, atom optics and fundamental problems of quantum mechanics.

His most important contributions are in the area of thermodynamics of radiating systems, in the interaction of strong laser fields with matter and most recently in the theory of ultra cold quantum gases. He published more than 200 original research papers. He advised 16 graduate students. His interests outside of physics include the theory of electoral systems for which he coauthored a comprehensive monograph. He received numerous Honors and Awards which include the Humboldt Foundation Prize (1997) and the Galileo Galilei Prize (2013).