Google says they have a quantum computer 100 million times faster than anything on the market

Business Insider ^ | 12/11/2015 | Sophie Bushwick, Popular Science

[SeekAndFind]

This week, Google announced a breakthrough that could prove its quantum computer is actually using quantum mechanics.

When researchers gave the D-Wave 2X a carefully crafted test problem, the 1,000-qubit computer solved it 100,000,000 times faster than a classical computer could.

Quite a few tech giants and government organizations are investing in quantum computing. And many of them, including Google, NASA, and Lockheed Martin, are working with the commercial quantum computers built by D-Wave.

The idea is that these devices can harness the counterintuitive effects of quantum mechanics to solve problems faster than conventional computers, which could potentially improve artificial intelligence, materials science, space exploration, and even Google web searches.

(Skeptics, however, have suggested these practical applications are far-fetched and that quantum computing would most likely be applied to a less glamorous business: proving the theories of quantum mechanics.)

No matter how we plan to use quantum computers, we have to jump a big hurdle first: proving that a computer is actually using quantum mechanics to solve a problem. One sign of QC in action is quantum speedup—and that's just what a team of Google researchers has discovered [disclosure: one of the researchers is friends with this author]. In their paper, released on the arXiv pre-print server, they designed a problem that a real quantum machine should be able to solve more effectively than a classical one. Then they posed this problem both to their D-Wave 2X and to a classical single-core computer.

[dearolddad]

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