Google says it has achieved a breakthrough in quantum computing research.
 Â
It says an experimental quantum processor has completed a calculation in just a few minutes that would take a traditional supercomputer thousands of years.
 Â
The results of its study appear in the scientific journal Nature. Google says it has achieved quantum supremacy, which means the quantum computer did something a conventional computer could never do.
 Â
But competitor IBM is disputing that Google achieved the benchmark, saying Google underestimated the conventional supercomputer.
 Â
Quantum computing is an advanced computing technology that is still at a relatively early stage of development.
(Copyright 2019 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.)
