Speaker
Hiroyuki Tajima
(The University of Tokyo)
Description
Hierarchical structures in quantum many-body systems often involve phase transitions and crossover phenomena in the intermediate regime. To understand their microscopic mechanisms, we discuss one of the most famous crossover phenomena in many-body physics, that is, Bose-Einstein-condensate (BEC) to Bardeen-Cooper-Schrieffer (BCS) crossover, realized in ultracold atoms. Moreover, the three-body counterpart of the BEC-BCS crossover associated with three-body bound states and its possible indication to nuclear physics will be presented.
