= Steven H. Simon
{c}
A <physicist> and author of teaching texts on <condensed matter physics> and quantum matter. His treatment of <linear response> develops a useful progression: calculate how independent <electrons> respond to a perturbing potential, then include the additional field produced by their own rearranged charge. The resulting <random phase approximation> explains <screening effect> as a self-consistent response, giving students a route from a microscopic model to the collective electrical behavior of a material.<Lecture Notes for Quantum Matter by Steven H. Simon>[Chapter 8, §§8.3–8.4: Lindhard response and self-consistent random phase approximation]{ref}
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