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quant-ph2024★ 1 cited
Topological invariant of velocity field in quantum systems
Annan Fan, Shi-Dong Liang
We introduce the velocity field of the Bloch electrons and propose the velocity field approach to characterize the topological invariants of quantum states. We find that the zero m…
quant-ph2024★ 2 cited
Zero modes of velocity field and topological invariant in quantum torus
Annan Fan, Shi-Dong Liang
We propose the velocity field approach to characterize topological invariants of quantum states. We introduce the indexes of the velocity field flow based on the zero modes of the…