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arXiv · 2509.13410

Symmetry Resolved Multipartite Entanglement Entropy

Ashwat Jain
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Abstract

We perform the symmetry resolution of a multipartite entanglement measure, namely the global entanglement $Q$ introduced by Meyer and Wallach [2002, J. of Math. Phys., 43, pp. 4273] for all systems of distinguishable particles hosting a locally acting symmetry. For an ensemble of Haar random states we find agreement with equipartition, with leading order behaviour and finite size corrections which follow a power law scaling with the number of local degrees of freedom. Implications of this result for the general symmetry-resolved multipartite entanglement paradigm are discussed and some possible experimental verification methods are presented.

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Ashwat Jain. 2025-09-16. Symmetry Resolved Multipartite Entanglement Entropy. https://arxiv.org/abs/2509.13410

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