Quantum independence and chromatic numbers

Fuente: arXiv
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Autores principales: Godsil, Chris, Sobchuk, Mariia
Formato: Preprint
Publicado: 2024
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author Godsil, Chris
Sobchuk, Mariia
author_facet Godsil, Chris
Sobchuk, Mariia
contents We construct a new graph on 120 vertices whose quantum and classical independence numbers are different. At the same time, we construct an infinite family of graphs whose quantum chromatic numbers are smaller than the classical chromatic numbers. Furthermore, we discover the relation to Kochen-Specker sets that characterizes quantum cocliques that are strictly bigger than classical ones. Finally, we prove that for graphs with independence number is two, quantum and classical independence numbers coincide.
format Preprint
id arxiv_https___arxiv_org_abs_2401_16518
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Quantum independence and chromatic numbers
Godsil, Chris
Sobchuk, Mariia
Combinatorics
Quantum Physics
We construct a new graph on 120 vertices whose quantum and classical independence numbers are different. At the same time, we construct an infinite family of graphs whose quantum chromatic numbers are smaller than the classical chromatic numbers. Furthermore, we discover the relation to Kochen-Specker sets that characterizes quantum cocliques that are strictly bigger than classical ones. Finally, we prove that for graphs with independence number is two, quantum and classical independence numbers coincide.
title Quantum independence and chromatic numbers
topic Combinatorics
Quantum Physics
url https://arxiv.org/abs/2401.16518