60 citations · 149 across the 11 of their papers we have counts for
11 papers
The magnetic effect on strongly correlated system with two currents near the QCP from holography
Jaeha Lee, Sang-Jin Sin, Geunho Song
We study the magnetic effect in strongly interacting system with two conserved currents near the quantum critical point (QCP). For this purpose, we introduce the hyper-scaling viol…
Determination of Dynamical exponents of Graphene at quantum critical point by holography
Geunho Song, Yunseok Seo, Sang-Jin Sin
We calculate the transport of a theory with two conserved currents by holographic method and compare it with graphene data to determine its dynamical exponents which charac…
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…
Interaction induced quasi-particle spectrum and the origin of the pinning peak in holography
Geunho Song, Yunseok Seo, Keun-Young Kim +1
It is often said that interactions destroy the particle nature of excitations. We report that, in holographic theory adding interaction term can create a new quasi particle spectru…
Stability of Topological character of Weyl Semi-metal, and Topological Dipole in Holography
Geunho Song, Junchen Rong, Sang-Jin Sin
We discuss the stability of the topological invariant of the strongly interacting Weyl semi-metal at finite temperature. We find that if the interactions and temperature of the sys…
Unitarity bound violation in holography and the Instability toward the Charge Density Wave
Geunho Song, Yunseok Seo, Sang-Jin Sin
We study the spectral function of fermions in a holographic set up with bulk Dirac mass in the regime beyond the conformal unitarity bound, and find that spectral function has the…
Schwarzian correction to quantum correlation in SYK model
Yong-Hui Qi, Yunseok Seo, Sang-Jin Sin +1
We study a class of SYK-type models in large N limit from the gravity dual side in terms of Schwarzian action analytically. The quantum correction to two point correlation function…
Mott transition with Holographic Spectral function
Yunseok Seo, Geunho Song, Yong-Hui Qi +1
We show that the Mott transition can be realized in a holographic model of a fermion with bulk mass, , and a dipole interaction of coupling strength . The phase diagram conta…
Small Fermi Surfaces and Strong Correlation Effects in Dirac Materials with Holography
Yunseok Seo, Geunho Song, Chanyong Park +1
Recent discovery of transport anomaly in graphene demonstrated that a system known to be weakly interacting may become strongly correlated if system parameter(s) can be tuned such…
Strong Correlation Effects on Surfaces of Topological Insulators via Holography
Yunseok Seo, Geunho Song, Sang-Jin Sin
We investigate effects of strong correlation on the surface state of topological insulator (TI). We argue that electrons in the regime of crossover from weak anti-localization to w…
Holography of the Dirac Fluid in Graphene with two currents
Yunseok Seo, Geunho Song, Philip Kim +2
Recent experiments have uncovered evidence of the strongly coupled nature of the graphene: the Wiedemann-Franz law is violated by up to a factor of 20 near the charge neutral point…