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Geng-Dong Zhou

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Preprint Jul 2026

Universality of Energy-Space Entanglement in Quantum Impurity Models

Entanglement entropy (EE) is commonly studied using real-space bipartitions. We show that, in quantum impurity models, an energy-space bipartition, equivalent to the momentum-space bipartition of the bath, can display universal behavior. Motivated by poor man's scaling, we logarithmically discretize the bath and partit...

Geng-Dong Zhou, Zhi-Da Song · 0 citations