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UV/IR mixing in non-Fermi liquids: higher-loop corrections in different energy ranges

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  • Ipsita Mandal

    (Perimeter Institute for Theoretical Physics)

Abstract

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.

Suggested Citation

  • Ipsita Mandal, 2016. "UV/IR mixing in non-Fermi liquids: higher-loop corrections in different energy ranges," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 89(12), pages 1-20, December.
    • Handle: RePEc:spr:eurphb:v:89:y:2016:i:12:d:10.1140_epjb_e2016-70509-4
    DOI: 10.1140/epjb/e2016-70509-4
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    Keywords

    Solid State and Materials;

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