15 citations · 15 across the 4 of their papers we have counts for
4 papers
Quaternion-Kähler geometry of time reversal symmetric crystals
Hyeongmuk Lim, Junseo Jung, Yuting Qian +1
Quantum geometry reveals how the shape of Bloch wave functions governs correlated quantum phenomena. Its standard formulation describes isolated complex bands, where Berry curvatur…
Unconventional topological phase transition of the Hopf insulator
Sunje Kim, Ysun Choi, Hyeongmuk Lim +1
The topological phase transition between two band insulators is mediated by a gapless state whose low-energy band structure normally contains sufficient information for describing…
Quantum Geometry and Landau Levels of Quadratic Band Crossings
Junseo Jung, Hyeongmuk Lim, Bohm-Jung Yang
We study the relation between the quantum geometry of wave functions and the Landau level (LL) spectrum of two-band Hamiltonians with a quadratic band crossing point (QBCP) in two-…
Real Hopf Insulator
Hyeongmuk Lim, Sunje Kim, Bohm-Jung Yang
Establishing the fundamental relation between the homotopy invariants and the band topology of Hamiltonians has played a critical role in the recent development of topological phas…