Holographic coarse-graining: correlators from the entanglement wedge and other reduced geometries

  title={Holographic coarse-graining: correlators from the entanglement wedge and other reduced geometries},
  author={Alberto G{\"u}ijosa and Yaithd D. Olivas and Juan F. Pedraza},
  journal={Journal of High Energy Physics},
Abstract There is some tension between two well-known ideas in holography. On the one hand, subregion duality asserts that the reduced density matrix associated with a limited region of the boundary theory is dual to a correspondingly limited region in the bulk, known as the entanglement wedge. On the other hand, correlators that in the boundary theory can be computed solely with that density matrix are calculated in the bulk via the GKPW or BDHM prescriptions, which require input from beyond… 

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