摘要
<p>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 multientropy. We define a genuine q-partite multientropy from a q-partite multientropy by subtracting appropriate linear combinations of q-partite multientropies for q < q, in such a way that the genuine qpartite multientropy vanishes for all 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 q-partite multientropy is important only after the Page time. For the application to holography, we prove that nonbipartite multientropies are always positive and O(1/G(N)), as long as boundary subregions are connected. This indicates that for holography, genuine multipartite entanglement is not small and plays an important role.</p>