Export citation

Export citation

Choose format for download:

Download Citation

    Family of two-parameter multipartite entanglement measures

    Yu Luo1,*, Zhihua Guo2, Fanxu Meng3, and Chen-Ming Bai4,†

    • *Contact author: penroseluoyu@gmail.com
    • †Contact author: baichm@stdu.edu.cn

    Phys. Rev. A 112, 062418 – Published 8 December, 2025

    DOI: https://doi.org/10.1103/7gg9-klc4

    Abstract

    Multipartite entanglement is regarded as a crucial physical resource in quantum network communication. However, due to the intrinsic complexity of quantum many-body systems, identifying a multipartite entanglement measure that is both efficiently computable and capable of accurately characterizing entanglement remains a challenging problem. To address these issues, we propose a family of two-parameter multipartite entanglement measures for mixed states, termed unified-entropy concentratable entanglements. Many well-known multipartite entanglement measures are recovered as special cases of this family of measures, such as the entanglement of formation and the concentratable entanglements introduced by Beckey et al. [Phys. Rev. Lett. 127, 140501 (2021)]. We demonstrate that the unified-entropy concentratable entanglements constitute well-defined entanglement monotones and establish several desirable properties they satisfy, such as subadditivity and continuity. We further investigate the ordering relations of unified-entropy concentratable entanglements and discuss how these quantities can be efficiently estimated on near-term quantum devices. As an application, we demonstrate that the unified-entropy concentratable entanglements can effectively distinguish between multiqubit Greenberger-Horne-Zeilinger states and W states. The ordering relations of these entanglement measures are further validated using four-partite star quantum network states and four-qubit Dicke states. Moreover, we find that the unified-entropy concentratable entanglements exhibit greater sensitivity than the original concentratable entanglements in detecting certain four-partite star quantum network states.

    Physics Subject Headings (PhySH)

    Authorization Required

    We need you to provide your credentials before accessing this content.

    References (Subscription Required)

    Outline

    Information

    Sign In to Your Journals Account

    Filter

    Filter

    Article Lookup

    Enter a citation