18 citations · 63 across the 16 of their papers we have counts for
17 papers
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…
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…
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…
Fermi arc in -wave holographic superconductors
Debabrata Ghorai, Taewon Yuk, Sang-Jin Sin
We have investigated the fermionic spectral function in -wave holographic superconductors. We show that the vector model with minimal coupling reveals a -wave spectral functi…
Observation of Kondo condensation in a degenerately doped silicon metal
H. Im, D. U. Lee, Y. Jo +10
When a magnetic moment is embedded in a metal, it captures itinerant electrons to form the Kondo cloud1,2, which can spread out over a few micrometres3,4. For a metal with dense ma…
ABC-stacked multilayer graphene in holography
Jeong-Won Seo, Taewon Yuk, Young-Kwon Han +1
A flat band can be studied an infinitely strong coupling, realized in a simple system. Therefore, its holographic realization should be interesting. Laia and Tong gave a realizatio…
Flow Equation and Fermion Gap in the Holographic Superconductors
Taewon Yuk, Sang-Jin Sin
We reconsider the fermion spectral function in the presence of the Cooper pair condensation and identified the interaction type of complex scalar and fermion, which gives consisten…
Holographic Lieb lattice and gapping its Dirac band
Young-Kwon Han, Jeong-Won Seo, Taewon Yuk +1
We first point out that the Laia-Tong model realizes the Lieb lattice in the holographic setup. It generates a flat band of sharp particle spectrum together with a Dirac band of un…
The emergence of Strange metal and Topological Liquid near Quantum Critical Point in a solvable model
Eunseok Oh, Taewon Yuk, Sang-Jin Sin
We discuss quantum phase transition by an exactly solvable model in the dual gravity setup. By considering the effect of the scalar condensation on the fermion spectrum near the qu…
Ginzberg-Landau-Wilson theory for Flat band, Fermi-arc and surface states of strongly correlated systems
Eunseok Oh, Yunseok Seo, Taewon Yuk +1
We consider a holographic theory as a Ginzberg-Landau theory working for strongly interacting system near the quantum critical point: we take the bulk matter field , the…