4.3 Article

Building up spacetime with quantum entanglement

Journal

GENERAL RELATIVITY AND GRAVITATION
Volume 42, Issue 10, Pages 2323-2329

Publisher

SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10714-010-1034-0

Keywords

AdS/CFT; Emergent spacetime; Quantum entanglement

Funding

  1. Natural Sciences and Engineering Research Council of Canada
  2. Alfred P. Sloan Foundation
  3. Canada Research Chairs
  4. Gravity Research Foundation

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In this essay, we argue that the emergence of classically connected spacetimes is intimately related to the quantum entanglement of degrees of freedom in a non-perturbative description of quantum gravity. Disentangling the degrees of freedom associated with two regions of spacetime results in these regions pulling apart and pinching off from each other in a way that can be quantified by standard measures of entanglement.

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