Adolfas Jucys

Adolfas Jucys, sometimes also quoted Yutsis, ( born September 12, 1904 in Klausgalvų Medsėdžiai in present-day Lithuania, † February 4, 1974 in Vilnius ) was a Lithuanian theoretical physicist who dealt with atomic physics.

Jucys was born in the Russian Empire ( Gouvernment Kaunas). He studied mathematics and physics at the University of Kaunas from 1927 to 1931 and was after one and a half years of military service from 1935 Assistant in the Physics Laboratory of the University of Kaunas. In 1938, he was with Douglas Hartree at the University of Manchester and 1939/40, at the University of Cambridge in Ralph Fowler. In 1940 he was a senior assistant at Vilnius University and soon thereafter an assistant professor. After receiving his doctorate in 1941 he became a professor of theoretical physics, which he remained until his death. His doctorate and be professor were confirmed in 1945 by the Soviet authorities. 1947 to 1948 he was director of the Pedagogical Institute in Vilnius. From 1949 he worked at the Steklov Institute in Leningrad at Vladimir Fock, where he worked on his habilitation 1951, (Russian doctorate ). In 1953 he was confirmed as chair of theoretical physics in Vilnius and 1956 to 1963 he was director of the Institute of Physics and Mathematics of the Lithuanian Academy of Sciences. On his initiative, a laboratory for computer numerical calculations is founded and in 1961 a first computer installed ( a Russian mainframe computer BESM -2M ) on which electronic structure calculations were then carried out of atoms. Since 1967 he was Head of the Department for quantum mechanical calculations at the Institute of Physics and Mathematics of the Lithuanian Academy of Sciences.

He held lectures in 1967 in Italy ( summer school in Frascati) and 1969 in the UK and France. In 1973/74 he lectured at the University of Waterloo.

Jucys is known as the founder of a school in theoretical nuclear physics in Lithuania. He built ( as a student of both founder of the theory ) from the Hartree- Fock theory in atomic physics. His monograph on a graphical method for the treatment of angular momentum couplings in theoretical atomic physics with I. Levinson is known ( Yehoshua Levinson ) and V. Vanagas ( Vladislovas Eimutis Vanagas ), which first appeared in Russian in 1960 and soon after. Translated into English This Yutsis graphs have been named after him later.

Other monographs ( in Russian ) published 1965 ( theory of angular momentum in quantum mechanics with A. Bandzaitis ) and 1973 ( Mathematical foundations of the theory of the atom, with A. Savukynas ).

In 1953 he became a member of the Lithuanian Academy of Sciences. In 1963 he was one of the founders of the Lithuanian Physical Society.

His son Algimatas Adolfas Jucys (1936-1997) was also a theoretical physicist and mathematician (according to him are Jucys - Murphy elements in the group algebra of the symmetric group named).

Writings

• Yutis, Levinson, Vanagas Mathematical Apparatus of the Theory of Angular Momentum, 1962, Gordon and Breach 1964 online at NASA