Qubit ZooAbstractRealizing a long coherence time quantum memory is a major challenge of current quantum technology.
Key Results
- Until now, the longest coherence-time of a single qubit was reported as 660 s in a single 171Yb+ ion-qubit through the technical developments of sympathetic cooling and dynamical decoupling pulses, which addressed heating-induced detection inefficiency and magnetic field fluctuations.
- However, it was not clear what prohibited further enhancement.
- Here, we identify and suppress the limiting factors, which are the remaining magnetic-field fluctuations, frequency instability and leakage of the microwave reference-oscillator.
Links
- Journal: Nature Communications