Complex systems are ubiquitous and can be found in various domains of physics, biology, and social sciences. Although they differ in origin and function, they share a common feature that they consist of a large number of interacting units, which exhibit collective behavior due to these interactions....

Electron transport in strongly correlated systems (in which the movement of one electron is strongly influenced by all other electrons) is a key topic in condensed matter physics. The low-temperature behaviors of such systems need to be better understood. Innovative quantum many-body numerical metho...

Our understanding of planet and planetesimal formation has been revolutionized by the discovery of numerous exoplanetary systems and their debris discs. One exciting development is the detection of young systems that seem to have belts of planetesimals, but also unexpectedly have high amounts of gas...