Nuclear spin qubits in a pseudo-spin quantum chain

TL;DR

This paper proposes a quantum computing architecture using nuclear spin qubits in a 1D chain of non-Kramers doublet atoms, utilizing symmetry breaking for control and analyzing decoherence and interactions, with potential realization via NMR.

Contribution

It introduces a novel QC design based on nuclear spin qubits in a quasi-1D chain and explores control mechanisms through symmetry breaking.

Findings

Control over local qubit dynamics via symmetry breaking

Analysis of decoherence mechanisms at the single qubit level

Feasibility of realization using NMR techniques in PrBr3-xFx

Abstract

We analyze a quantum computer (QC) design based on nuclear spin qubits in a quasi-one-dimensional (1D) chain of non-Kramers doublet atoms. We explore the use of spatial symmetry breaking to obtain control over the local dynamics of a qubit. We also study the decoherence mechanisms at the single qubit level and the interactions mediated by the magnetic media. The design can be realized in $\textrm{PrBr}_{\textrm{3}-x}\textrm{F}_{x}$ with nuclear magnetic resonance (NMR) techniques.