2 papers
cond-mat.mes-hall2026
Second-Chern Bounds in Non-Abelian Quantum Geometry
Junwen Zhao, Zhiming Pan, Kang Yang +1
We study the quantum geometry of doubly degenerate energy levels in a four-dimensional parameter space. We find that the scalar quantum metric and the Berry curvature obey…
cond-mat.str-el2026
Incompressible quantum liquid on the four-dimensional sphere
Junwen Zhao, Xue Meng, Wei Zhu +1
The study of quantum Hall effect (QHE) is a foundation of topological physics, inspiring extensive explorations of its high-dimensional generalizations. Notably, the four dimension…