3 papers
cond-mat.mtrl-sci2024
Measurements of the quantum geometric tensor in solids
Mingu Kang, Sunje Kim, Yuting Qian +15
Understanding the geometric properties of quantum states and their implications in fundamental physical phenomena is at the core of modern physics. The Quantum Geometric Tensor (QG…
cond-mat.mes-hall2024
Quantum Valley Hall effect without Berry curvature
Rasoul Ghadimi, Chiranjit Mondal, Sunje Kim +1
The quantum valley Hall effect (QVHE) is characterized by the valley Chern number (VCN) in a way that one-dimensional (1D) chiral metallic states are guaranteed to appear at the do…
cond-mat.mes-hall2024
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…