= Mehran Kardar
{c}
{tag=Physicist}
{wiki}
A theoretical <physicist> whose teaching develops the <renormalization group> as a way to understand <critical phenomena>. His position-space treatment replaces microscopic variables with coarser variables and follows the changing interactions. Repeating this operation exposes <renormalization-group fixed points>, explaining how systems with different microscopic details can share large-scale behavior.<Position Space Renormalization Group by Mehran Kardar>[Lecture 13: coarse graining, coupling recursion and fixed points]{ref}
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