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Capacity of entanglement in random pure state

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arxiv 2103.08909 v1 pith:SFUCETIA submitted 2021-03-16 hep-th

classification hep-th
keywords capacityentanglementpurerandomstatearguebipartitecompute
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We compute the capacity of entanglement in the bipartite random pure state model using the replica method. We find the exact expression of the capacity of entanglement which is valid for a finite dimension of the Hilbert space. We argue that in the gravitational path integral, the capacity of entanglement receives contributions only from the sub-leading saddle points corresponding to the partially connected geometries.

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