The large, error-correcting quantum computers envisioned today could be decades away, yet experts are vigorously trying to come up with ways to use existing and near-term quantum processors to solve useful problems despite limitations due to errors or “noise.”
![](https://3c1703fe8d.site.internapcdn.net/newman/csz/news/tmb/2019/20-researchersl.jpg)
Source:
https://phys.org/news/2019-07-breakthrough-quantum.html