Suitable for physicists and scholars, this title includes descriptions of the then-known particle universe and its nascent conceptual framework that allow readers to glimpse the foundations of the field from the perspective of one of its most distinguished contributors. It also provides an update, detailing advances in quantum field theory.

Professor of physics at the University of Chicago and a member of the Institute for Nuclear Studies until his death in 1954, Enrico Fermi was awarded the Medal of Merit for his work on the atomic bomb and received the Nobel Prize in 1938 for research in neutron physics. Thomas Appelquist is Eugene Higgins Professor of Physics at Yale University.

Professor of physics at the University of Chicago and a member of the Institute for Nuclear Studies until his death in 1954, Enrico Fermi was awarded the Medal of Merit for his work on the atomic bomb and received the Nobel Prize in 1938 for research in neutron physics. Thomas Appelquist is Eugene Higgins Professor of Physics at Yale University.