Elihu Abrahams (April 3, 1927 – October 18, 2018) was a theoretical physicist, specializing in condensed matter physics.
Ramakrishnan published the highly influential paper "Scaling Theory of Localization: Absence of Quantum Diffusion in Two Dimensions" in Physical Review Letters 42.
Often referred to as the "gang of four paper" in physics circles, the authors proposed new, precise predictions about the behavior of electrons in disordered materials.
His main interests concern the quantum-mechanical many-body problem in the presence of very strong particle-particle interactions.
In this area, he has been using the techniques of quantum statistical mechanics and field theory to investigate the phase transitions and the transport and thermodynamic properties of a number of systems, including high-temperature cuprate superconductors, metals at the threshold of breakdown of Fermi-liquid behavior, iron pnictide superconductors, heavy-fermion metals, localized spins in metals, magnets with unusual spin correlations, and the disordered interacting electron fluid in two dimensions.