Quantum bit threads
arXiv:2105.08072 · doi:10.21468/SciPostPhys.14.5.097
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.
24 pages, 5 figures; v2: minor improvements made and new appendix added; v3: version for publication with no significant changes