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Genuine multi-entropy and holography

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arxiv 2502.07995 v5 pith:PJDBMKMH submitted 2025-02-11 hep-th quant-ph

Genuine multi-entropy and holography

classification hep-th quant-ph
keywords mathttmulti-entropypartitegenuineholographytildeapplicationblack
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Is bipartite entanglement sufficient for holography? Through the analysis of the Markov gap, it is known that the answer is no. In this paper, we give a new perspective on this issue from a different angle using a multi-entropy. We define a genuine $\mathtt{q}$-partite multi-entropy from a $\mathtt{q}$-partite multi-entropy by subtracting appropriate linear combinations of $\mathtt{\tilde{q}}$-partite multi-entropies for $\mathtt{\tilde{q}} < \mathtt{q}$, in such a way that the genuine $\mathtt{q}$-partite multi-entropy vanishes for all $\mathtt{\tilde{q}}$-partite entangled states. After studying several aspects, we apply it to black holes and holography. For the application to black holes, we see that such a genuine $\mathtt{q}$-partite multi-entropy is important only after the Page time. For the application to holography, we prove that non-bipartite multi-entropies are always positive and $\mathcal{O}\left({1/ G_N}\right)$, as long as boundary subregions are connected. This indicates that for holography, genuine multi-partite entanglement is not small and plays an important role.

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Cited by 14 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Multi-entropy in random tensor networks

    hep-th 2026-06 unverdicted novelty 7.0

    For n=2, Rényi multi-entropies in RTNs are determined by minimal multiway cuts; the minimal multiway cut conjecture fails for integer n>2 with explicit counterexamples.

  2. Structural Obstruction to Replica Symmetry Breaking for Multi-Entropy in Random Tensor Networks

    hep-th 2026-04 unverdicted novelty 7.0

    Multi-entropy exhibits a structural obstruction to replica symmetry breaking in random tensor networks due to incompatible boundary permutations in the replica hypercube, unlike entanglement negativity.

  3. Operational meaning of Markov gap in tripartite entanglement of quantum dynamics

    quant-ph 2026-07 conditional novelty 6.0

    Irreducible tripartite entanglement in free-fermion chains saturates on a slow t~L^2 timescale and its Markov gap value tracks the number of 'essential tripartite fermions' defined via a null matrix.

  4. Genuine Multi-Entropy in the Toric Code

    hep-th 2026-07 conditional novelty 6.0

    Genuine multi-entropy in the toric code reduces to topological entanglement entropy for stabilizer states at low replica index but captures independent topological data at n=4 and for non-stabilizer states.

  5. The Entanglement Wedge Polygon

    hep-th 2026-06 unverdicted novelty 6.0

    The paper defines the entanglement wedge polygon as the intersection of entanglement wedges external to individual homology regions and studies its topological and geometric properties in AdS examples.

  6. Detecting Topological Transitions and Anisotropy through Multipartite Entanglement in Holographic Weyl Semimetals

    hep-th 2026-06 unverdicted novelty 6.0

    Multipartite entanglement quantities in holographic Weyl semimetals develop features at the topological critical point and distinguish phases through anisotropic large-l scaling.

  7. Constraints on four-party entanglement in holography

    hep-th 2026-05 unverdicted novelty 6.0

    In time-reflection-symmetric holographic states, I3 is necessary for non-vanishing four-party entanglement signals, bounds multi-entropy measures, and implies vanishing of Q4.

  8. On a mixed-state extension of the holographic signal inequality

    hep-th 2026-05 unverdicted novelty 6.0

    Generalizes the holographic signal inequality to mixed states, finds violations due to vanishing Markov gap in some geometries, restores it on canonical purification, and conjectures a new inequality.

  9. Genuine multientropy, dihedral invariants and Lifshitz theory

    hep-th 2025-08 unverdicted novelty 6.0

    Authors derive genuine multientropy for Lifshitz states as mutual information plus negativity, obtain its non-integer Rényi continuation, and prove dihedral invariants equal Rényi reflected entropies for general tripa...

  10. Multi-entropy in heavy local quenches

    hep-th 2026-06 unverdicted novelty 5.0

    Genuine multi-entropy in heavy local quenches in 2D holographic CFTs is kinematically fixed to logarithms of rational functions of time, independent of heavy operator dimension, due to global saddle selection in the g...

  11. Constraints on four-party entanglement in holography

    hep-th 2026-05 unverdicted novelty 5.0

    In time-reflection-symmetric holographic states, I3 implies vanishing of multiple four-party entanglement measures and bounds those from multi-entropy, though Q4 is not quantitatively bounded by I3.

  12. The Junction Law for Multipartite Entanglement in Confining Holographic Backgrounds

    hep-th 2026-04 unverdicted novelty 5.0

    The junction law for multipartite entanglement persists in confining holographic backgrounds, but phase structure and GM short-distance scaling (L^{-4}, L^{-2}, or L^{-2}(log L)^2) are background-dependent.

  13. Tripartite Correlation Signal from Multipartite Entanglement of Purification

    hep-th 2025-09 unverdicted novelty 5.0

    Δ^(3)_p is a non-negative signal detecting genuine tripartite entanglement, extended via the E_w = E_p conjecture to holographic systems in AdS3/CFT2.

  14. Rethinking quantum information in gravity and fields

    hep-th 2026-06 unverdicted novelty 2.0

    The paper organizes important open questions in quantum gravity and quantum information into four themes without presenting new results or derivations.