276 citations · 2.6k across the 56 of their papers we have counts for
9 papers · 1 filter
Relationship between Symmetry Protected Topological Phases and Boundary Conformal Field Theories via the Entanglement Spectrum
Gil Young Cho, Ken Shiozaki, Shinsei Ryu +1
Quantum phase transitions out of a symmetry-protected topological (SPT) phase in (1+1) dimensions into an adjacent, topologically distinct SPT phase protected by the same symmetry…
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…
Response Properties of Axion Insulators and Weyl Semimetals Driven by Screw Dislocations and Dynamical Axion Strings
Yizhi You, Gil Young Cho, Taylor L. Hughes
In this paper, we investigate the theory of dynamical axion string emerging from chiral symmetry breaking in three-dimensional Weyl semimetals. The chiral symmetry is spontaneously…
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…
Universal Entanglement Spectra of Gapped One-dimensional Field Theories
Gil Young Cho, Andreas W. W. Ludwig, Shinsei Ryu
We discuss the entanglement spectrum of the ground state of a gapped (1+1)-dimensional system in a phase near a quantum phase transition. In particular, in proximity to a quantum p…
Topological superconducting phases from inversion symmetry breaking order in spin-orbit-coupled systems
Yuxuan Wang, Gil Young Cho, Taylor L. Hughes +1
We analyze the superconducting instabilities in the vicinity of the quantum-critical point of an inversion symmetry breaking order. We first show that the fluctuations of the inver…