Many physical systems, ranging from free relativistic particles to fields and strings, exhibit constrained dynamics. I will provide a brief introduction to the Dirac approach to the quantisation of constrained systems and illustrate it with several simple and instructive examples.

Biography

Dr. Nefediev is holding a PIFI visiting scientist fellowship. He works mainly on theoretical studies in hadronic physics, analysis and interpretation of the experimental and lattice data, prediction of new hadronic states and their properties, and so on. He obtained his PhD degree in 1999 at the Institute of Theoretical and Experimental Physics (Moscow, Russia). From 2000 to 2002, he was a postdoctoral researcher at the Instituto Superior Tecnico (Lisbon, Portugal). From 2002, he took a permanent position as a Senior Scientist at the Institute for Theoretical and Experimental Physics (Moscow). In 2017, he obtained his second scientific degree adopted in Russia, Doctor of Sciences (habilitation). In 2018, he occupied a permanent position as a Leading Scientist at P.N.Lebedev Institute of the Russian Academy of Sciences (Moscow). From 2022 to 2024, he held the position of a Scientific Advisor at the Institute Josef Stefan, Ljubljana, Slovania. Since Sept. 2024, he works at the University of Bonn.

Inviter: Feng-Kun Guo