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Holography of the Dirac Fluid in Graphene with Two Currents

Title
Holography of the Dirac Fluid in Graphene with Two Currents
Author
서윤석
Issue Date
2017-01
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW LETTERS, v. 118, no. 3, Article no. 036601
Abstract
Recent experiments have uncovered evidence of the strongly coupled nature of graphene: the Wiedemann-Franz law is violated by up to a factor of 20 near the charge neutral point. We describe this strongly coupled plasma by a holographic model in which there are two distinct conserved U(1) currents. We find that our analytic results for the transport coefficients for the two current model have a significantly improved match to the density dependence of the experimental data than the models with only one current. The additive structure in the transport coefficients plays an important role. We also suggest the origin of the two currents.
URI
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.118.036601https://repository.hanyang.ac.kr/handle/20.500.11754/105835
ISSN
0031-9007; 1079-7114
DOI
10.1103/PhysRevLett.118.036601
Appears in Collections:
RESEARCH INSTITUTE[S](부설연구소) > THE RESEARCH INSTITUTE FOR NATURAL SCIENCES(자연과학연구소) > Articles
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