[3] He received in 1983 his Ph.D. from Cornell University with a thesis[4][5] supervised by Michael E. Fisher.
[3] At the Institute for Advanced Study, he has been appointed to positions for the autumn of 2010, and for the academic years 2015–2016, 2019–2020, and 2021–2022.
He has made outstanding contributions to topics such as phase transitions, spin glasses and magnetic ordering in materials.
His current research interests include ultracold atomic systems and non-equilibrium physics, and explore phenomena as quantum thermalization and many body localization.
[1] In 2022 he received the Lars Onsager Prize with Boris Altshuler and Igor Aleiner for ""foundational work on many-body localization, its associated phase transition, and implications for thermalization and ergodicity.