State transfer analysis for linear spin chains with non-uniform on-site energies

Fuente: arXiv
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Main Authors: Nelmes, Chad C., D'Amico, Irene, Spiller, Timothy P.
Format: Preprint
Published: 2025
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author Nelmes, Chad C.
D'Amico, Irene
Spiller, Timothy P.
author_facet Nelmes, Chad C.
D'Amico, Irene
Spiller, Timothy P.
contents High fidelity state transfer is an important ingredient of distributed quantum information processing. We present and analyse results on perfect and quasi-perfect state transfer with linear spin chains incorporating non-uniform on-site energies. The motivation is maintenance of coupling uniformity, which could be beneficial for some physical implementations. We relate this coupling uniformity to a particle in a discrete potential analogue. Our analysis further considers the statistical variation in couplings and on-site energies, as a function of increasing chain site number N.
format Preprint
id arxiv_https___arxiv_org_abs_2507_13261
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle State transfer analysis for linear spin chains with non-uniform on-site energies
Nelmes, Chad C.
D'Amico, Irene
Spiller, Timothy P.
Quantum Physics
Other Condensed Matter
Computational Physics
High fidelity state transfer is an important ingredient of distributed quantum information processing. We present and analyse results on perfect and quasi-perfect state transfer with linear spin chains incorporating non-uniform on-site energies. The motivation is maintenance of coupling uniformity, which could be beneficial for some physical implementations. We relate this coupling uniformity to a particle in a discrete potential analogue. Our analysis further considers the statistical variation in couplings and on-site energies, as a function of increasing chain site number N.
title State transfer analysis for linear spin chains with non-uniform on-site energies
topic Quantum Physics
Other Condensed Matter
Computational Physics
url https://arxiv.org/abs/2507.13261