5 citations · 17 across the 14 of their papers we have counts for
15 papers
Lifshitz transition in a holographic finite density flavour brane Weyl semimetal
Cheng-Yuan Lu, Xian-Hui Ge, Sang-Jin Sin
We extend a top-down holographic model of a Weyl semimetal to finite charge density and compute the fermionic spectral function by introducing two probe fermions of opposite chiral…
Tilted Dirac cones and their topology in Holographic Materials
Jeong-Won Seo, Taewon Yuk, Sang-Jin Sin
We explore strongly correlated materials with tilted Dirac cone by introducing a method to realize this spectral feature within a holographic setup. Following the work by Moradpour…
Topology in Holographic Mean-Field Theory at Zero and Finite Temperature
Moongul Byun, Taewon Yuk, Young-Kwon Han +2
We investigate topological invariants in strongly interacting many-body systems within holographic mean-field theory (H-MFT) framework. Analytic expressions for retarded Green's fu…
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 fermions in the Dyonic Gubser-Rocha black hole
Cheng-Yuan Lu, Xian-Hui Ge, Sang-Jin Sin
We investigate the fermionic properties of a dyonic Gubser-Rocha model in the context of gauge/gravity duality. This model incorporates both a magnetic field and momentum relaxatio…
Topological transition as a percolation of the Berry curvature
Han-Byul Kim, Taewon Yuk, Sang-Jin Sin
We first study the importance of the sign of the Berry curvature in the Euler characteristic of the two-dimensional topological material with two bands. Then we report an observati…
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…
Classes of Holographic Mott Gaps
Debabrata Ghorai, Taewon Yuk, Young-Kwon Han +1
The fermion gaps are classified into order gap or Mott gap depending on the presence/absence of the order parameter. We construct the holographic model of the Mott gap using the fi…
Encoding the lattice in the Holography
Taewon Yuk, Sang-Jin Sin
One of the most wanted features of holography in its condensed matter physics application is to encode the structure of lattice, which is the most direct data of the material. In t…
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…
First order phase transition in the D3-D7 model from the point of view of the fermionic spectral functions
Xian-Hui Ge, Shuta Ishigaki, Sang-Jin Sin +1
We consider the D3-D7 model and use the spectral function of a probe fermion on D7 to analyze the first order phase transition from the black-hole embedding phase to another black-…
Order parameter and spectral function in -wave holographic superconductors
Debabrata Ghorai, Taewon Yuk, Sang-Jin Sin
We consider the -wave holographic superconductor model with full backreaction on the metric, addressing a missing part in the literature. We have identified the corrected order…
New black holes with hyperscaling violation and transports of quantum critical points with magnetic impurity
Xian-Hui Ge, Yunseok Seo, Sang-Jin Sin +1
We consider the magneto-transports of quantum matters doped with magnetic impurities near the quantum critical points(QCP). For this, we first find new black hole solution with hyp…