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Quantum Networks

Entanglement Entropy in Quantum Networks with Tunable Geometry

arXiv

Authors: Andrea Azzali, Sridevi Kuriyattil, Andrew J. Daley, Marilù Chiofalo

Year

2026

Paper ID

73500

Status

Preprint

Abstract Read

~2 min

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Abstract

Quantum many-body Hamiltonians with two-body interactions can be represented by graphs, with sites as nodes and two-site couplings as edges. We investigate how the geometry of these graphs affects transport and entanglement growth. To do so, we study dynamics for quantum hopping on a random graph model with an effective range parameter. Tuning it, we interpolate between nearest-neighbor and all-to-all graphs, identifying a new localization regime that is robust in both single-particle and finite-density cases. This provides a model of Anderson localization induced by structural disorder, with implications for amorphous materials and tunable-range analog quantum simulators.

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Quantum many-body Hamiltonians with two-body interactions can be represented by graphs, with sites as nodes and two-site couplings as edges.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2607.16394 [2] arXiv https://arxiv.org/abs/2607.16394 [3] Publisher https://arxiv.org/abs/2607.16394

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