2012/05/15 by M. J. Luo, Luo, M. J.
Materials Science · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #Phase-change materials and chalcogenides #Quantum, superfluid, helium dynamics #Spectroscopy and Quantum Chemical Studies #Strongly Correlated Electrons (cond-mat.str-el) #cond-mat.str-el #hep-th
paper · pdf · doi:10.48550/arxiv.1205.3267
RevTeX4, 10 pages, no figure, minor improvements
openalex publication_date 2012/05/15 · arxiv created 2012/09/19 · arxiv updated 2012/09/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Criticality with strong coupling is described by a theory in the vicinity of a non-Gaussian fixed point. The holographic duality conjectures that a theory at a non-Gaussian fixed point with strong coupling is dual to a gravitational theory. In this paper, we present a holographic theory in treating the strongly coupled critical spin fluctuations in quasi-2-dimension. We show that a universal frequency over temperature scaling law is a rather general property of the critical ac spin susceptibility at strongly coupled limit. Explicit results for the dynamic scaling of spin susceptibility are obtained in large-N and large 't Hooft limit. We argue that such critical scaling are in good agreement with a number of experiments, some of which can not be explained by any perturbative spin-density-wave theory. Our results strongly suggest that the anomalous behavior of non-Fermi liquids in materials is closely related to the spin fluctuations described through the non-Gaussian fixed point. The exotic properties of non-Fermi liquids can be viewed as the Fermi liquids coupling to strongly coupled critical spin fluctuations.