Lev Pitaevskii

Lev Petrovich Pitaevskii ( ; 18 January 1933 – 23 August 2022) was a Russian theoretical physicist. He was known for his works in the theory of quantum mechanics, electrodynamics, low-temperature physics, plasma physics, and condensed matter physics. He was also the co-author of a few volumes of "Course of Theoretical Physics" series. 
Pitaevskii died on 23 August 2022 in Rovereto, Italy at the age of 89.