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197 papers · 1 filter
Symmetric Tensor Coupling in Holographic Mean-Field Theory: Deformed Dirac Cones
Moongul Byun, Taewon Yuk, Sang-Jin Sin
We extend the holographic mean-field theory to rank-two symmetric tensor field as an external source coupled with fermion. We classify the roles of symmetric tensor coupling accord…
Hall Angle of a Spatially Random Vector Model
Yi-Li Wang, Young-Kwon Han, Xian-Hui Ge +1
Strange metals exhibit linear resistivity and anomalous Hall transport, yet a comprehensive theory that accounts for both phenomena is still lacking. Recent studies have shown SYK-…
Holographic mean field theory and Kondo lattice
Young-Kwon Han, Debabrata Ghorai, Taewon Yuk +1
We first study a non-relativistic field theory model for the Kondo lattice by introducing the Kondo condensation, whose main effect is the hybridization of the flat band of the loc…
Linear-T Resistivity from Spatially Random Vector Coupling
Yi-Li Wang, Xian-Hui Ge, Sang-Jin Sin
Recently, Patel et al. introduced a higher dimensional version of the SYK model with random coupling in a Yukawa interaction to find the linear- resistivity. We test the univers…
Mean field theory for strongly coupled systems: Holographic approach
Supalert Sukrakarn, Taewon Yuk, Sang-Jin Sin
In this paper, we develop the holographic mean field theory for strongly interacting fermion systems. We investigate various types of the symmetry-breakings and their effect on the…
Correlation Functions and Stochastic Feynman Rules for Self-Interacting Scalar Fields
Moongul Byun
It is well known that perturbative solutions of the Langevin equation can be used to calculate correlation functions in stochastic quantization. However, this work is challenging d…