Back to feed
GeneralArs Technica - All contentJohn Timmer

Quantum computers outperform classical ones, with results you can trust

Quantum computers outperform classical ones, with results you can trust

At a glance

There are many algorithms for which it has been mathematically proven that a quantum computer can generate results that would take a classical computer an unreasonable amount of time to generate. Unfortunately, today's quantum computers either can't run those algorithms or can only run simplified versions that classica

Primary source
Read original article
Published
Topic
General

There are many algorithms for which it has been mathematically proven that a quantum computer can generate results that would take a classical computer an unreasonable amount of time to generate.

Unfortunately, today's quantum computers either can't run those algorithms or can only run simplified versions that classical computers can also handle.

This has left the field facing a challenging question: Can we demonstrate the promise of quantum computers on today's noisy, limited hardware? That's a more difficult question than it may first appear.

If you generate a result that's out of reach of today's regular computers, it may not be possible to verify that you got the right result. And given that today's quantum computers are somewhat error-prone, getting the wrong result is a distinct possibility.

Further, in the absence of a mathematical proof of the capabilities of quantum hardware, it's possible that a better classical algorithm could outperform the quantum hardware. These issues inspired IBM to launch a quantum advantage tracker.

On Thursday, the company announced three new entries that it says clearly show a quantum advantage, each using a different approach to overcoming erro

This summary comes from Ars Technica - All content. Read the full article at the original source.

References