Improving a Trapped-Ion Quantum Computer with a Cryogenic Sapphire Oscillator

SummaryWe report an 8.7-second qubit coherence time in a ytterbium ion ( 171 Yb + ) using a microwave synthesis system derived from an ultra-low phase noise cryogenic sapphire oscillator (CSO). Our measurement provides evidence that the phase noise of a local oscillator that serves as the master clo...

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Bibliographic Details
Published in2023 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS) pp. 1 - 2
Main Authors Tan, T. R., Navickas, T., Valahu, C., Jee, J., Rao, A., Millican, M., Biercuk, M.
Format Conference Proceeding
LanguageEnglish
Published IEEE 15.05.2023
Subjects
Cryogenics
Local oscillators
Phase measurement
Phase noise
Qubit
Time-frequency analysis
Ytterbium
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Summary:SummaryWe report an 8.7-second qubit coherence time in a ytterbium ion ( 171 Yb + ) using a microwave synthesis system derived from an ultra-low phase noise cryogenic sapphire oscillator (CSO). Our measurement provides evidence that the phase noise of a local oscillator that serves as the master clock plays a significant role in the operation fidelities of a trapped-ion quantum information processor.
ISSN:2327-1949
DOI:10.1109/EFTF/IFCS57587.2023.10272197