276 citations · 2.6k across the 56 of their papers we have counts for
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Quaternionic Hermitian Band Geometry in Four Dimensions: Realization on and Obstruction on
Dongju Hwang, Minjae Yu, Gil Young Cho
We establish a realization-obstruction dichotomy for quaternionic Hermitian band geometry in four-dimensional parameter spaces: the minimal-charge lowest Landau level on pr…
Robust Interlayer-Coherent Quantum Hall States in Twisted Bilayer Graphene
Dohun Kim, Byungmin Kang, Yong-Bin Choi +5
We introduce a novel two-dimensional electronic system with ultrastrong interlayer interactions, namely twisted bilayer graphene with a large twist angle, as an ideal ground for re…
Gate-tunable quantum pathways of high harmonic generation in graphene
Soonyoung Cha, Minjeong Kim, Youngjae Kim +14
Under strong laser fields, electrons in solids radiate high-harmonic fields by travelling through quantum pathways in Bloch bands in the sub-laser-cycle timescales. Understanding t…
Chiral anomaly in noncentrosymmetric systems induced by spin-orbit coupling
Suik Cheon, Gil Young Cho, Ki-Seok Kim +1
The chiral anomaly may be realized in condensed matter systems with pairs of Weyl points. Here we show that the chiral anomaly can be realized in diverse noncentrosymmetric systems…
Steady Floquet-Andreev States Probed by Tunnelling Spectroscopy
Sein Park, Wonjun Lee, Seong Jang +7
Engineering quantum states through light-matter interaction has created a new paradigm in condensed matter physics. A representative example is the Floquet-Bloch state, which is ge…
Higher-Order Topological Insulator in Twisted Bilayer Graphene
Moon Jip Park, Youngkuk Kim, Gil Young Cho +1
Higher-order topological insulators are newly proposed topological phases of matter, whose bulk topology manifests as localized modes at two- or higher-dimensional lower boundaries…
Holographic Entanglement Renormalization of Topological Insulators
Xueda Wen, Gil Young Cho, Pedro L. S. Lopes +3
We study the real-space entanglement renormalization group flows of topological band insulators in (2+1) dimensions by using the continuum multi-scale entanglement renormalization…
Holographic duality between -d quantum anomalous Hall state and -d topological insulators
Yingfei Gu, Ching Hua Lee, Xueda Wen +3
In this paper, we study -dimensional quantum anomalous Hall states, i.e. band insulators with quantized Hall conductance, using the exact holographic mapping. The exact holo…