PIRSA:16070011 Conference Quantum Fields and Strings Quantum Gravity Quantum Information

DOI10.48660/16070011

Conference/School: It from Qubit Summer School

Headrick, M. (2016). A new perspective on holographic entanglement. Perimeter Institute. https://pirsa.org/16070011

Headrick, Matthew. A new perspective on holographic entanglement. Perimeter Institute, Jul. 18, 2016, https://pirsa.org/16070011 

@misc{ pirsa_PIRSA:16070011,
  doi = {10.48660/16070011},
  url = {https://pirsa.org/16070011},
  author = {Headrick, Matthew},
  keywords = {Quantum Fields and Strings, Quantum Gravity, Quantum Information},
  language = {en},
  title = {A new perspective on holographic entanglement},
  publisher = {Perimeter Institute},
  year = {2016},
  month = {jul},
  note = {PIRSA:16070011 see, \url{https://pirsa.org}}
}

Abstract

The by-now classic Ryu-Takayanagi formula associates the entanglement entropy of a spatial region in a holographic field theory with the area of a certain minimal surface in the bulk. Despite its simplicity and beauty, this formula raises a number of stubborn conceptual problems. I will present a reformulation which does not involve the areas of surfaces. This reformulation leads to a picture of entanglement in the field theory being carried by Planck-thickness "bit threads" in the bulk. I will argue that this picture helps to resolve a number of the conceptual difficulties surrounding the RT formula

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