Condensed matter is one of the most active areas of research in physics. Ev- ery year new materials are discovered with properties that are as challenging as or more than those of the year before. The effort is led mainly by exper- imentalists, who systematically manage to prepare compounds with exotic new properties, including complex ground states involving nontrivial spin, charge, lattice, and orbital arrangements. This work is typically carried out by a relatively small number of researchers, compared with other disciplines, and the interaction between experimentalists and theorists is...

Condensed matter is one of the most active areas of research in physics. Ev- ery year new materials are discovered with properties that are as challenging as or more than those of the year before. The effort is led mainly by exper- imentalists, who systematically manage to prepare compounds with exotic new properties, including complex ground states involving nontrivial spin, charge, lattice, and orbital arrangements. This work is typically carried out by a relatively small number of researchers, compared with other disciplines, and the interaction between experimentalists and theorists is...