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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?

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

Google says error correction will lead to useful quantum computers

23 February 2023

For the first time, Google has shown it is possible to reduce the overall number of errors produced by a quantum computer, meaning it should be possible to build larger, useful devices

Quantum computers can break major encryption method, researchers claim

5 January 2023

It has long been known that one day quantum computers will probably be able to crack the RSA encryption method we use to keep data safe, but a team of researchers is now claiming it is already possible, while others say the results require more scrutiny

Quantum computers in use today are vulnerable to eavesdropping hackers

16 November 2022

Companies such as IBM offer timeshare access to prototype quantum computers, but researchers have shown that they can access other users’ data on these machines

Google's quantum supremacy challenged by ordinary computers, for now

18 August 2022

In 2019, Google showed that its Sycamore quantum computer could solve a problem that no ordinary computer could handle - but now a new algorithm gives non-quantum devices the edge

US chooses encryption tools to protect us from quantum computers

5 July 2022

The National Institute of Standards and Technology has revealed the next generation of algorithms that will keep our private data safe from snoopers

SALISBURY, ENGLAND - Challenger 2 Main Battle Tank during a training exercise on Salisbury Plain Training Area in Salisbury, England. 5 RIFLES Battlegroup prepares for deployment on Op CABRIT in Estonia as part of the NATO enhanced Forward Presence later this year. 5 RIFLES Battlegroup is trialing a new concept of training or Operational Readiness Model (ORM) on behalf of The Field Army to ensure they are mission ready. Additionally, due to the Coronavirus pandemic, training methods have been adjusted with innovative measures introduced to ensure that training isn't compromised and expectations and operational outputs lowered. (Photo by Finnbarr Webster/Getty Images)

UK military investigating quantum computers for battlefield tanks

10 June 2022

The UK's Ministry of Defence has bought a quantum computer that doesn't require bulky cooling equipment, meaning it could one day be installed on military hardware such as tanks

quantum computer closeup 3d render; Shutterstock ID 1748025194; purchase_order: -; job: -; client: -; other: -

Google calls for urgent switch to quantum-safe encryption as US delays

11 May 2022

A US body in charge of choosing new encryption algorithms that can withstand quantum computers has delayed announcing them due to undisclosed legal reasons, while a team at Google is calling for an immediate switch