Before revision: A common thread in the study of quantum materials is the concept of emergence, as advocated by P. W. Anderson in his famous article "More is Different", by David Pines and Robert Laughlin in their article The theory of everything .
After revision: and""A common thread in the study of quantum materials is the concept of emergence, as advocated by P. W. Anderson in his famous article "More is Different", by David Pines and Robert Laughlin in their article The theory of everything .