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Biography
Karol Życzkowski (1960–present) is a Polish physicist and mathematician. He is a professor of physics at the Atomic Physics Department, Institute of Physics, of the Jagiellonian University in Kraków, Poland, and also at the Center for Theoretical Physics of the Polish Academy of Sciences in Warsaw. Member of Academia Europaea since 2014. Życzkowski was a member of the Commission on European Matters PAU created by the Polish Academy of Learning. Życzkowski has contributed to quantum chaos, quantum measurement, entropy, and entanglement, the theory of votingand jointly with Wojciech Słomczyński designed the Jagiellonian Compromise - a voting system for the Council of the European Union. He worked on complex Hadamard matrices, numerical range and numerical shadow. His father is Michał Życzkowski.