Preprint
Sep 2026
Chern-number estimation: nearly optimal quantum algorithm and provable quantum speedup
Topological phases of matter are characterized by global properties of quantum states beyond conventional local order parameters. The Chern number is a central invariant in this characterization, linking the geometry of quantum states to robust physical observables and making its determination key to understanding quan...
Soichiro Imamura, Shintaro Ae, Kazuki Sakamoto et al.
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