Boris Leonidovich Altshuler (Russian: Бори́с Леонидович Альтшу́лер, born 27 January 1955, Leningrad, USSR) is a professor of theoretical physics at Columbia University.
Recently, Altshuler has joined the faculty of Columbia and continues to work with the NEC Labs.
In collaboration with Boris Shklovskii, Althsuler developed the theory of level repulsion in disordered metals.
The latter achievement of Altshuler and Aleiner is widely regarded as a major milestone and many-body localization, they introduced, has now developed into a flourishing new field of physics.
In 2016, the predicted phenomenon of many-body localization was observed experimentally by the group of Immanuel Bloch in Munich, Germany.