UV/IR mixing in non-Fermi liquids: higher-loop corrections in different energy ranges
Perimeter Institute for Theoretical
Physics, 31 Caroline St.
N., Waterloo ON
a e-mail: firstname.lastname@example.org
Received in final form: 31 October 2016
Published online: 21 December 2016
We revisit the Ising-nematic quantum critical point with an m-dimensional Fermi surface by applying a dimensional regularization scheme, introduced in [I. Mandal, S.S. Lee, Phys. Rev. B 92, 035141 (2015)]. We compute the contribution from two-loop and three-loop diagrams in the intermediate energy range controlled by a crossover scale. We find that for m = 2, the corrections continue to be one-loop exact for both the infrared and intermediate energy regimes.
Key words: Solid State and Materials
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2016