Superconducting qubits have passed a key quantum test
10 May 2023
A Bell test can confirm whether two systems are truly entangled – it has now been used to confirm entanglement between qubits in a superconducting circuits
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Premium
Google’s quantum computer simulation of a wormhole may not have worked
27 February 2023
The first simulation of a wormhole on a quantum computer made headlines, but a new study brings into question whether it was an accurate representation
A quantum computer has simulated a wormhole for the first time
30 November 2022
Researchers have used Google's Sycamore quantum computer to simulate a simplified wormhole for the first time, and sent a piece of quantum information through it
Quantum hyperchaos could help build better quantum computers
25 January 2021
When quantum computers get too complex, they can display hyperchaotic behaviour – like chaos, but more chaotic – and understanding it could help improve computer designs
First ever quantum chess tournament won by Amazon researcher
10 December 2020
Quantum chess – a complicated game in which pieces can be in more than one place at the same time – has had its first tournament, and a player from Amazon won
A quantum computer that measures light has achieved quantum supremacy
3 December 2020
A specialised quantum computer has achieved quantum supremacy, accomplishing in under 4 minutes what would take the biggest supercomputer 600 million years
IonQ says its record-breaking quantum computer is most powerful ever
1 October 2020
IonQ has unveiled its new quantum computer, which the firm claims is the most powerful ever built thanks to a record-breaking quantum volume
D-Wave claims it has the world's most powerful quantum computer
29 September 2020
D-Wave calls its new Advantage quantum computing system “the largest and most powerful quantum computer in existence” – but experts are sceptical about that claim
Google performed the first quantum simulation of a chemical reaction
27 August 2020
For the first time, Google has used its quantum computer Sycamore to simulate a chemical reaction, paving the way for quantum chemistry algorithms
Honeywell claims it has built the most powerful quantum computer ever
24 June 2020
Honeywell, a US-based tech firm, has built the most powerful quantum computer ever by some measures, but some experts say it isn’t actually better than other quantum computers on the market
