Genons, Double Covers and Fault-tolerant Clifford Gates

Fuente: arXiv
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Auteurs principaux: Burton, Simon, Durso-Sabina, Elijah, Brown, Natalie C.
Format: Preprint
Publié: 2024
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author Burton, Simon
Durso-Sabina, Elijah
Brown, Natalie C.
author_facet Burton, Simon
Durso-Sabina, Elijah
Brown, Natalie C.
contents A great deal of work has been done developing quantum codes with varying overhead and connectivity constraints. However, given the such an abundance of codes, there is a surprising shortage of fault-tolerant logical gates supported therein. We define a construction, such that given an input $[[n,k,d]]$ code, yields a $[[2n,2k,\ge d]]$ symplectic double code with naturally occurring fault-tolerant logical Clifford gates. As applied to 2-dimensional $D(\mathbb{Z}_2)$-topological codes with genons (twists) and domain walls, we find the symplectic double is genon free, and of possibly higher genus. Braiding of genons on the original code becomes Dehn twists on the symplectic double. Such topological operations are particularly suited for architectures with all-to-all connectivity, and we demonstrate this experimentally on Quantinuum's H1-1 trapped-ion quantum computer.
format Preprint
id arxiv_https___arxiv_org_abs_2406_09951
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Genons, Double Covers and Fault-tolerant Clifford Gates
Burton, Simon
Durso-Sabina, Elijah
Brown, Natalie C.
Quantum Physics
A great deal of work has been done developing quantum codes with varying overhead and connectivity constraints. However, given the such an abundance of codes, there is a surprising shortage of fault-tolerant logical gates supported therein. We define a construction, such that given an input $[[n,k,d]]$ code, yields a $[[2n,2k,\ge d]]$ symplectic double code with naturally occurring fault-tolerant logical Clifford gates. As applied to 2-dimensional $D(\mathbb{Z}_2)$-topological codes with genons (twists) and domain walls, we find the symplectic double is genon free, and of possibly higher genus. Braiding of genons on the original code becomes Dehn twists on the symplectic double. Such topological operations are particularly suited for architectures with all-to-all connectivity, and we demonstrate this experimentally on Quantinuum's H1-1 trapped-ion quantum computer.
title Genons, Double Covers and Fault-tolerant Clifford Gates
topic Quantum Physics
url https://arxiv.org/abs/2406.09951