Useful quantum computers will be impossible without error correction. Good thing these folks are working on it

What if the cat in the box could come back to life?

Boffins from America's standards-setting body NIST, the University of Maryland (UMD), and the California Institute of Technology believe there's a way to make quantum computers correct many of their own errors – which would help overcome one of the major design challenges for such devices.…

from The Register