Work

Symmetry-resolved genuine multientropy: Random Haar and graph states

Year: 2026

Type: article

Abstract: We study the symmetry-resolved genuine multientropy, a measure that captures genuine multipartite entanglement, in Haar random states and random graph states in the presence of a conserved quantity. For Haar random states, we derive explicit formulas for the genuine multientropy under a global U ( 1 ) symmetry in the thermodynamic limit, and find that its dependence on subsystem sizes closely resembles that of fully Haar random states without a conserved charge. We also perform numerical analyses, focusing on spin systems for both Haar random and graph states. For random graph states, our numerical analyses reveal distinctive features of their multipartite entanglement structure and we contrast them with the Haar random case.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/yts4-fldf

Authors: Norihiro Iizuka, Simon Lin

Institutions: Kyoto University, National Tsing Hua University, Yukawa Institute for Theoretical Physics, New York University Abu Dhabi

Language: English

Topic: Quantum many-body systems

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funders: National Science and Technology Council, Ministry of Education, Culture, Sports, Science and Technology

Awards: Black Holes and Quantum Entanglement, G5064758364