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What is a quantum computer?

Question

What is a quantum computer?

Quantum computers are machines that use the properties of quantum physics to store data and perform computations.

Google's sycamore chip

Technology

Google's qubit rivals: The race to useful quantum computers has begun

News

Google hits back at IBM's quantum supremacy challenge

Physics

Google hits back at IBM's quantum supremacy challenge

News

Quantum computer

Physics

It’s official: Google has achieved quantum supremacy

News

IBM lab

Physics

IBM says Google may not have reached quantum supremacy after all

News

NASA engineer's 'helical engine' may violate the laws of physics

Space

NASA engineer's 'helical engine' may violate the laws of physics

News

What the quark?! Why matter's most basic building blocks may not exist

Physics

What the quark?! Why matter's most basic building blocks may not exist

Features

The google universal quantum computer

Technology

Google has reached quantum supremacy – here's what it should do next

Analysis

Energy flash

Physics

Google claims it has finally reached quantum supremacy

News

xkcd comic creator Randall Munroe on the thrill of physics

Physics

xkcd comic creator Randall Munroe on the thrill of physics

The cartoonist and engineer talks time travel paradoxes, absurd interviews with astronauts, and how strange science can fix everyday problems

Regulars

Physics

Bye bye space-time: is it time to free physics from Einstein’s legacy?

Leader

Physics

What is space-time? The true origins of the fabric of reality

Features

Physics

How big is a proton? We may finally have the answer to this puzzle

News

Scientists win millions in the 2020 Breakthrough Prize

News