Holographic interaction effects on transport in Dirac semimetals

V.P.J. Jacobs*, S. Vandoren, H.T.C. Stoof

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Strongly interacting Dirac semimetals are investigated using a holographic model especially geared to compute the single-particle correlation function for this case, including both interaction effects and non-zero temperature. We calculate the (homogeneous) optical conductivity at zero chemical potential, and show that it scales as a power law either in frequency or in temperature for low frequency. The precise power is related to a critical exponent of the dual holographic theory, which is a parameter in the model. The behavior for Coulomb interactions is obtained as a special limiting case.
Original languageEnglish
Article number045108
Pages (from-to)1-5
Number of pages5
JournalPhysical review. B, condensed matter
Volume90
Issue number4
DOIs
Publication statusPublished - 15 Jul 2014

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