SciPost Submission Page
Quantum bit threads
by Andrew Rolph
This Submission thread is now published as
Submission summary
| Authors (as registered SciPost users): | Andrew Rolph |
| Submission information | |
|---|---|
| Preprint Link: | https://arxiv.org/abs/2105.08072v3 (pdf) |
| Date accepted: | 2023-02-15 |
| Date submitted: | 2022-12-21 18:00 |
| Submitted by: | Rolph, Andrew |
| Submitted to: | SciPost Physics |
| Ontological classification | |
|---|---|
| Academic field: | Physics |
| Specialties: |
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| Approach: | Theoretical |
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.
Author comments upon resubmission
List of changes
To address referee 2's comment #3, I've added "Regarding bulk entanglement entropy, we neglect graviton fluctuations and potential issues of bulk
Hilbert space factorisation, as in the FLM and QES proposals" to footnote 2.
To address referee 2's comment #6, I've added "Proposal II is a flow prescription that is equivalent to the FLM surface prescription" to page 6.
To address referee 1's requested change #2, I updated the references to include https://arxiv.org/abs/2208.10507
Published as SciPost Phys. 14, 097 (2023)
Reports on this Submission
Strengths
1. Provides flow reformulation of QES prescription for computing holographic entanglement entropy using quantum bit threads.
2. Relates quantum bit threads to `double holography'.
3. Comments on relation of quantum bit threads to the emergence of islands.
4. Well written, clear and concise.
Report
This journal's acceptance criteria has been met. Therefore I recommend this article for publication.
Requested changes
None.