English

Quantum bit threads

High Energy Physics - Theory 2023-05-03 v3

Abstract

We give a bit thread prescription that is equivalent to the quantum extremal surface prescription for holographic entanglement entropy. Our proposal is inspired by considerations of bit threads in doubly holographic models, and equivalence is established by proving a generalisation of the Riemannian max-flow min-cut theorem. We explore our proposal's properties and discuss ways in which islands and spacetime are emergent phenomena from the quantum bit thread perspective.

Cite

@article{arxiv.2105.08072,
  title  = {Quantum bit threads},
  author = {Andrew Rolph},
  journal= {arXiv preprint arXiv:2105.08072},
  year   = {2023}
}

Comments

24 pages, 5 figures; v2: minor improvements made and new appendix added; v3: version for publication with no significant changes

R2 v1 2026-06-24T02:11:46.655Z