Ryszard Horodecki (born 30 September 1943) is a Polish physicist and a professor of University of Gdaà Âsk. He contributed largely to the field of quantum informatics. In his most widely cited paper, 'Separability of Mixed States: Necessary and Sufficient Conditions' written together with his sons, Michaà  and Paweà Â, he proposed the idea currently known as the PeresâÂÂHorodecki criterion. With over 12,000 citations, he is considered to be one of the leading Polish physicists.
He graduated from Department of Electronics, University of Gdaà Âsk. Horodecki received his Ph.D. from Gdaà Âsk University of Technology in 1976. Twenty-one years later, in 1997 he obtained his habilitation from Nicolaus Copernicus University in Toruà Â. His contribution to the quantum informatics were acknowledged in 2008, when he received the Prize of the Foundation for Polish Science in the field of mathematics and physics. In 2010 he became a member of Polish Academy of Sciences, whereas in 2011 received prestigious ERC Advanced Grant.
Beyond scientific work, Horodecki publishes also poems in several Polish newspapers, particularly in Tygodnik Powszechny.
Horodecki's sons, Michaà Â, Paweà Â, and Karol are also physicists working in Gdaà Âsk with all of whom he jointly published the review article "Quantum entanglement".