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cond-mat.mes-hall2023
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-…
cond-mat.mes-hall2023★ 15 cited
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…