Single ion qubit with estimated coherence time exceeding one hour

Extending qubit coherence times represent one of the key challenges for quantum technologies. Here, after properly suppressing magnetic-field fluctuations, frequency instability and leakage of the microwave reference-oscillator, the authors infer coherence times of 5500 s for an Yb ion qubit.

Bibliographic Details
Main Authors: Pengfei Wang, Chun-Yang Luan, Mu Qiao, Mark Um, Junhua Zhang, Ye Wang, Xiao Yuan, Mile Gu, Jingning Zhang, Kihwan Kim
Format: Article
Language:English
Published: Nature Portfolio 2021-01-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-020-20330-w