Wilsonian and Large N Approaches to Non-Fermi Liquids
APA
Fitzpatrick, L. (2014). Wilsonian and Large N Approaches to Non-Fermi Liquids. Perimeter Institute. https://pirsa.org/14050095
MLA
Fitzpatrick, Liam. Wilsonian and Large N Approaches to Non-Fermi Liquids. Perimeter Institute, May. 26, 2014, https://pirsa.org/14050095
BibTex
@misc{ pirsa_PIRSA:14050095, doi = {10.48660/14050095}, url = {https://pirsa.org/14050095}, author = {Fitzpatrick, Liam}, keywords = {}, language = {en}, title = {Wilsonian and Large N Approaches to Non-Fermi Liquids}, publisher = {Perimeter Institute}, year = {2014}, month = {may}, note = {PIRSA:14050095 see, \url{https://pirsa.org}} }
Boston University
Talk Type
Abstract
We study the problem of metals near a quantum critical point using a local Wilsonian effective field theory of Fermi surface fermions coupled to massless boson (i.e. order parameter) fields, in particular in a large N limit where the boson is matrix-valued. We focus on regions of parameter space where the boson dresses the fermions into a non-Fermi liquid while the bosons are approximately controlled by the Wilson-Fisher fixed point.