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Bibliographic Details
Main Author: Hastings, Matthew B.
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2509.22998
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author Hastings, Matthew B.
author_facet Hastings, Matthew B.
contents We construct a sparse $Z_2$ chain complex (with three different degrees, so that it corresponds to a quantum code) which does not admit a sparse lift to the integers, answering a question in Ref. 1.
format Preprint
id arxiv_https___arxiv_org_abs_2509_22998
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A Sparse $Z_2$ Chain Complex Without a Sparse Lift
Hastings, Matthew B.
Quantum Physics
Geometric Topology
We construct a sparse $Z_2$ chain complex (with three different degrees, so that it corresponds to a quantum code) which does not admit a sparse lift to the integers, answering a question in Ref. 1.
title A Sparse $Z_2$ Chain Complex Without a Sparse Lift
topic Quantum Physics
Geometric Topology
url https://arxiv.org/abs/2509.22998