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
Quantum twist on common computer algorithm promises useful speed boost
12 July 2023
Quantum computers have been shown to solve some problems faster than ordinary computers, but so far all these problems have had little application. A quantum Monte Carlo algorithm could change that
Which quantum computer is the most powerful ever? It's complicated
22 June 2023
IonQ has become the latest company to claim its quantum computer is more powerful than any other computer in existence - despite not having built it yet. But how exactly do you benchmark a quantum computer?
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
Quantum computers could slash the energy use of cryptocurrencies
20 June 2023
Mining cryptocurrencies like bitcoin could be done using quantum computers, cutting their electricity use by 90 per cent
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
'Fluxonium’ is the longest lasting superconducting qubit ever
25 May 2023
A fluxonium qubit can keep its most useful quantum properties for about 1.48 milliseconds, drastically longer than similar qubits currently favoured by the quantum computing industry
Sound vibrations can encode and process data like quantum computers do
19 May 2023
A simple mechanical system built from aluminium rods uses vibrations to encode information, mimicking quantum computing in a non-quantum system
Cryptographers bet cash on when quantum computers will beat encryption
30 April 2023
It is thought that quantum computers will eventually be able to crack the encryption methods we use today, but exactly when this will happen is an open question. Now, one cryptographer has started a betting pool
Quantum computers may finally have their first real practical use
18 March 2023
Methods to generate the random numbers we need for secure communications are all flawed in some way, but quantum computers that exist today could produce random numbers that can't be faked
