Impulsive Spin-Motion Entanglement for Fast Quantum Computation and Sensing

Fuente: arXiv
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Autores principales: Putnam, Randall, West, Adam D., Campbell, Wesley C., Hamilton, Paul
Formato: Preprint
Publicado: 2023
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author Putnam, Randall
West, Adam D.
Campbell, Wesley C.
Hamilton, Paul
author_facet Putnam, Randall
West, Adam D.
Campbell, Wesley C.
Hamilton, Paul
contents We perform entanglement of spin and motional degrees of freedom of a single, ground-state trapped ion through the application of a $16$ ps laser pulse. The duration of the interaction is significantly shorter than both the motional timescale ($30$ $μ$s) and spin precession timescale ($1$ ns) , demonstrating that neither sets a fundamental speed limit on this operation for quantum information processing. Entanglement is demonstrated through the collapse and revival of spin coherence as the spin components of the wavefunction separate and recombine in phase space. We infer the fidelity of these single qubit operations to be $(97^{+3}_{-4})\%$.
format Preprint
id arxiv_https___arxiv_org_abs_2307_11287
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Impulsive Spin-Motion Entanglement for Fast Quantum Computation and Sensing
Putnam, Randall
West, Adam D.
Campbell, Wesley C.
Hamilton, Paul
Quantum Physics
Atomic Physics
We perform entanglement of spin and motional degrees of freedom of a single, ground-state trapped ion through the application of a $16$ ps laser pulse. The duration of the interaction is significantly shorter than both the motional timescale ($30$ $μ$s) and spin precession timescale ($1$ ns) , demonstrating that neither sets a fundamental speed limit on this operation for quantum information processing. Entanglement is demonstrated through the collapse and revival of spin coherence as the spin components of the wavefunction separate and recombine in phase space. We infer the fidelity of these single qubit operations to be $(97^{+3}_{-4})\%$.
title Impulsive Spin-Motion Entanglement for Fast Quantum Computation and Sensing
topic Quantum Physics
Atomic Physics
url https://arxiv.org/abs/2307.11287