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arXiv · 2408.10314

Entanglement entropy in lattice models with quantum metric

Alexander Kruchkov·Shinsei Ryu
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Abstract

We revisit the connection between entanglement entropy and quantum metric in topological lattice systems, and provide an elegant and concise proof of this connection. In gapped two-dimensional lattice models with well-defined tight-binding Hamiltonians, we show that the entanglement entropy is intimately related to the quantum metric of electronic states.

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Alexander Kruchkov, Shinsei Ryu. 2024-08-19. Entanglement entropy in lattice models with quantum metric. https://arxiv.org/abs/2408.10314

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