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
Main Authors: Tan, T. R., Navickas, T., Valahu, C., Jee, J., Rao, A., Millican, M., Biercuk, M.
Format: Conference Proceeding
Language:English
Subjects:
Cryogenics
Local oscillators
Phase measurement
Phase noise
Qubit
Time-frequency analysis
Ytterbium
Online Access:Request full text
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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