Holographic coarse-grained states and the necessity of perfect entanglement

Dec 22, 2023
55 pages
Published in:
  • Phys.Rev.D 109 (2024) 12, 126012
  • Published: Jun 13, 2024
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Abstract: (APS)
In the framework of the holographic principle, focusing on a central concept, conditional mutual information, we construct a class of coarse-grained states, which are intuitively connected to a family of thread configurations. These coarse-grained states characterize the entanglement structure of holographic systems at a coarse-grained level. Importantly, these coarse-grained states can be used to further reveal nontrivial requirements for the holographic entanglement structure. Specifically, we employ these coarse-grained states to probe the entanglement entropies of disconnected regions and the entanglement wedge cross section dual to the inherent correlation in a bipartite mixed state. The investigations demonstrate the necessity of perfect tensor state entanglement. Moreover, in a certain sense, our work establishes the equivalence between the holographic entanglement of purification and the holographic balanced partial entropy. We also construct a thread configuration with the multiscale entanglement renormalization ansatz (MERA) structure, reexamining the connection between the MERA structure and kinematic space.
Note:
  • 55 pages, 22 figures
  • entanglement: structure
  • entropy: entanglement
  • holography
  • duality
  • family
  • kinematics
  • correlation
  • mixed state
  • renormalization