Building up spacetime with quantum entanglement

Abstract

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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Correspondence to Mark Van Raamsdonk.

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First Award in the 2010 Essay Competition of the Gravity Research Foundation.

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Van Raamsdonk, M. Building up spacetime with quantum entanglement. Gen Relativ Gravit 42, 2323–2329 (2010). https://doi.org/10.1007/s10714-010-1034-0

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Keywords

  • AdS/CFT
  • Emergent spacetime
  • Quantum entanglement