Record-breaking number of qubits entangled in a quantum computer
12 July 2023
A group of 51 superconducting qubits have been entangled inside a quantum computer, not just in pairs but in a complex system that entangles each qubit to every other one
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Premium
Microsoft says its weird new particle could improve quantum computers
21 June 2023
Researchers at Microsoft say they have created elusive quasiparticles called Majorana zero modes – but scientists outside the company are sceptical
IBM quantum computer beat a supercomputer in a head-to-head test
14 June 2023
Researchers at IBM pitted their 127-qubit Eagle quantum computer against a conventional supercomputer in a challenge to perform a complex calculation – and the quantum computer won
Supersized atoms could help quantum computers link to optical fibres
22 March 2023
A device that uses supersized rubidium atoms could make it possible to transmit outputs from quantum computers through standard optical fibres. That in turn could make it easier to build networks of quantum computers
Quantum computers that use 'cat qubits' may make fewer errors
5 March 2023
Quantum bits inspired by Schrödinger’s cat could allow quantum computers to make fewer mistakes and more efficiently crack algorithms used for encryption
Why it might be impossible to build a practical quantum computer
25 August 2021
After “quantum supremacy”, the next step is scaling up and mastering the errors that dog qubits. But some researchers reckon the noise might always to be too high for useful quantum computers
Using microwave beams could let quantum computers be small but mighty
13 August 2021
A decades-old theory to simplify silicon quantum processors has been shown to work, potentially paving the way for vastly more powerful quantum devices
Google researchers made a time crystal inside a quantum computer
3 August 2021
A time crystal is a unique phase of matter that flips between two configurations with no energy input necessary – first proposed in 2012, this type of matter has now been created inside a quantum computer built by Google
Google demonstrates vital step towards large-scale quantum computers
14 July 2021
Google has shown that its Sycamore quantum computer can detect and fix computational errors, an essential step for large-scale quantum computing, but its current system generates more errors than it solves
China beats Google to claim the world's most powerful quantum computer
5 July 2021
A team in China has demonstrated that it has the world's most powerful quantum computer, leapfrogging the previous record holder, Google
