In the 1940s, trailblazing physicists stumbled upon the next layer of reality. Particles were out, and fields — expansive, undulating entities that fill space like an ocean — were in. One ripple in a ...

Abstract figure illustrating the renormalization group (RG) approach. When observing the system on increasingly coarser length scales (indicated by the concentric circles and the arrow in front of the ...

We explore the possibility of anisotropic Kondo screening in generic J=3/2 Kondo and Anderson impurity models with tetragonal crystal fields, using a combination of poor man’s scaling and numerical ...

Renormalization group ideas have had a major impact on condensed matter physics for more than a half century. This book develops the theory and illustrates the broad applicability of the ...