How to certify a quantum computer

Quantum computers are being developed by teams working not only at universities but also at Google, IBM, Microsoft and D-Wave, a start-up company. And things are evolving quickly, says Nicolas Sangouard, SNSF Professor at ...

Space-borne quantum source to secure communication

Soon, powerful quantum computers will be able to easily crack conventional mathematically encrypted codes. Entangled photons generated by a spaceborne quantum source could enable hack-proof key exchange for ultra high security ...

Putting underused smart devices to work

There are currently millions of heavily underutilized devices in the world. The storage, networking, sensing and computational power of laptops, smartphones, routers and base stations grows with each new version and product ...

AI speeds up climate computations

Realistic climate simulations require huge reserves of computational power. An LMU study now shows that new algorithms allow interactions in the atmosphere to be modeled more rapidly without loss of reliability.

New oceanographic insight pinpoints marine 'hotspots of risk'

Increased computing power has given fisheries researchers new tools to identify "hotspots of risk," where ocean fronts and eddies bring together masses of fish, fishermen and predators, raising the risk of entangling non-target ...

When space launchers come clean

The upper stages of space launchers are typically loaded with sensors that could theoretically tell engineers everything they need to know about the launcher's status and possible vulnerabilities. Yet, limited on-board computing ...

Towards sustainable blockchains

As blockchains become ever more popular and widespread, a growing concern is their sustainability. Current designs, most notably the blockchain underlying the Bitcoin cryptocurrency, are secured using so-called "proofs of ...

Bitcoin more vulnerable to attack than expected

Calculations by University of Twente researchers show that Bitcoin is more vulnerable to attack than people had always assumed. If some Bitcoin users were to form a group that controls 20 percent of the currency's computing ...

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