English

Symmetry Resolved Multipartite Entanglement Entropy

Quantum Physics 2025-09-18 v1 Mesoscale and Nanoscale Physics

Abstract

We perform the symmetry resolution of a multipartite entanglement measure, namely the global entanglement QQ 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.

Keywords

Cite

@article{arxiv.2509.13410,
  title  = {Symmetry Resolved Multipartite Entanglement Entropy},
  author = {Ashwat Jain},
  journal= {arXiv preprint arXiv:2509.13410},
  year   = {2025}
}

Comments

17 pages, 2 figures

R2 v1 2026-07-01T05:40:26.816Z