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Trapped Ion Quantum Computing Quantum Simulation

Optimization of Pulses with Low Bandwidth for Improved Excitation of Multiple-Quantum Coherences in NMR of Quadrupolar Nuclei

arXiv
Authors: Jens Jakob Sørensen, Jacob Søgaard Nyemann, Felix Motzoi, Jacob Sherson, Thomas Vosegaard

Year

2019

Paper ID

39939

Status

Preprint

Abstract Read

~2 min

Abstract Words

91

Citations

N/A

Abstract

We discuss the commonly encountered problem when optimizing NMR pulses using optimal control that the otherwise very precise NMR theory does not provide as excellent agreement with experiments. We hypothesize that this disagreement is due to phase transients in the pulse due to abrupt phase- and amplitude changes resulting in a large bandwidth. We apply the GROUP algorithm that gives high fidelity pulses with a low bandwidth compared to the typical GRAPE pulses. Our results obtain a better agreement between experiment and simulations supporting our hypothesis and solution to the problem.

Why This Paper Matters

  • This paper contributes to the Quantum Simulation research area in the Quantum Articles archive.
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  • We discuss the commonly encountered problem when optimizing NMR pulses using optimal control that the otherwise very precise NMR theory does not provide as excellent agreement...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1912.05862 [2] arXiv https://arxiv.org/abs/1912.05862 [3] Publisher https://arxiv.org/abs/1912.05862

Local Citation Graph (Related-Paper Links)

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