David Pines

David Pines (June 8, 1924 - May 3, 2018) was a US physicist recognized for his work in quantum many-body systems in condensed matter and nuclear physics. With his advisor David Bohm, he contributed to the understanding of electron interactions in metals. Bohm and Pines introduced the plasmon, the quantum of electron density oscillations in metals. They pioneered the use of the random phase approximation. His work with John Bardeen on electron-phonon interactions led to the development of the BCS theory of superconductivity. Pines extended BCS theory to nuclear physics to explain stability of isotopes with even and odd numbers of nucleons. He also used the theory of superfluidity to explain the glitches in neutron stars.

Pines was a promoter of the concept of emergence in physics. Provided by Wikipedia