Frequency-robust M{\o}lmer-S{\o}rensen gates via balanced contributions of multiple motional modes

In this work, we design and implement frequency-robust Molmer-Sorensen gates on a linear chain of trapped ions, using Gaussian amplitude modulation and a constant laser frequency. We select this frequency to balance the entanglement accumulation of all motional modes during the gate to produce a str...

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Bibliographic Details
Main Authors Ruzic, Brandon P, Chow, Matthew N. H, Burch, Ashlyn D, Lobser, Daniel, Revelle, Melissa C, Wilson, Joshua M, Yale, Christopher G, Clark, Susan M
Format Journal Article
LanguageEnglish
Published 05.10.2022
Subjects
Physics - Quantum Physics
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Summary:In this work, we design and implement frequency-robust Molmer-Sorensen gates on a linear chain of trapped ions, using Gaussian amplitude modulation and a constant laser frequency. We select this frequency to balance the entanglement accumulation of all motional modes during the gate to produce a strong robustness to frequency error, even for long ion chains. We demonstrate this technique on a three-ion chain, achieving $<\,1\%$ reduction from peak fidelity over a $20\,$kHz range of frequency offset, and we analyze the performance of this gate design through numerical simulations on chains of two to 33 ions.
DOI:10.48550/arxiv.2210.02372