Articles about quantum computing

Encryption

Cisco backs test to help classical crypto outlive quantum computers

Cisco and quantum security outfit Isara reckon they've got at least as far as alpha stage in one problem of the future: securing public key certificates against quantum computers. “Quantum computers will break cryptography” is a popular mass media trope, but the big brains of crypto have been aware of the risk for some time. …
Google's Bristlestone quantum processor

'Quantum supremacy will soon be ours!', says Google as it reveals 72-qubit quantum chip

Google reckons it's on the cusp of demonstrating “quantum supremacy” with the development of a 72-qubit processor. Quantum supremacy refers to the point at which a quantum computer should outperform a classical computer, without incurring the performance costs of error correction (as described in this 2016 paper). Google …

Alibaba fires up a cloudy quantum computer

Alibaba reckons the world needs another quantum computer in the cloud, so it's opened up access to an 11-qubit system. The system landed almost exactly a year after IBM announced its five-qubit quantum offering. In November last year, Big Blue embiggened the system to 20 qubits. So as well as being the second cloudy quantum …
drawing of live cat and cat skeleton

Microsoft ports its Quantum Development Kit to Linux and macOS

Microsoft has ported its Quantum Development Kit to Linux and macOS. Redmond first announced its forays into quantum computing at the Ignite conference in September 2017 and in December of the same year gave its efforts a name – Q#. In the absence of genuinely quantum hardware to run on, Q# (with its Visual Studio integration …

Boffins show off speedy quantum CNOT gate - in silicon

German and American boffins have claimed a speed record for a quantum CNOT gate: 200 nanosecond operation, which would equate to 5 MHz clock speeds. Just as important, the researchers created the quantum CNOT* gate in silicon, in the form of electron spins controlled by microwave pulses. As this announcement from the …
Quantum blackboard

Microsoft asks devs for quantum leap of faith

Those without access to a quantum computer can console themselves with Microsoft's Quantum Development Kit, introduced as a preview release on Monday. Quantum computing has been around as as a plausible idea since the 1980s, based on earlier theoretical work on quantum information systems. But it would take until 2011 before …
Thomas Claburn, 11 Dec 2017

Today in non-depressing news: Boffins build biggest quantum sims

Two teams of researchers have created the world's largest publicly known quantum simulators – a type of quantum computer – each containing more than 50 qubits to model complex interactions between matter that cannot be performed with a conventional supercomputer. Quantum simulators are a restricted type of quantum computer …
Katyanna Quach, 30 Nov 2017
Bank vault

Quantum computers could crack Bitcoin, but fixes are available now

An international group of quantum boffins reckons Bitcoin could be broken by the year 2027. The researchers from Singapore, Australia and France say that scenario represents the worst case, and would see a quantum computer able to run Shor's algorithm against the cryptocurrency's protective elliptic curve signature quicker …

Google, Volkswagen spin up quantum computing partnership

Google's quantum computer isn't much more than a science project at this stage, but Volkswagen is hitching a ride anyway. At the Web Summit conference in Europe yesterday, VW announced it inked a deal with the Chocolate Factory, in which they will work together on quantum applications in traffic management, and battery …
D-Wave chip

Google: We don't have a quantum computer yet, but we have a compiler

Google and rival Rigetti Computing have co-published what you could think of as an open source quantum compiler. OpenFermion, available here, is more formally described by the Chocolate Factory as a “platform for translating problems in chemistry and materials science into quantum circuits that can be executed on existing …
Intel's 17-qubit quantum chip

Look! Over there! Intel's cooked a 17-qubit chip quantum package

Intel reckons it's stolen a base in the race to build quantum chippery, by shipping a cryogenically-cooled 17-qubit chip to Netherlands-based QuTech. QuTech is Chipzilla's quantum research partner – QuZilla, so to speak. Regular readers of spooky-action-stories will know a qubit is a fragile creature, losing data if there's …

Japanese boffins try 'token passing' to scale quantum calculations

Apart from actually performing computations, one of the most difficult quantum computing challenges is getting qubits to scale. A Japanese team has published what it believes is a solution to the problem of scale. Quantum gates are complex creatures with many more components than their classical equivalents, so instead of …
drawing of live cat and cat skeleton

Israel gets spooky with national quantum lab

Israel has entered the quantum communications arms race, announcing it's going to build a national demonstrator for “spooky” communications. Don't get too excited: the network isn't going to protect ordinary punters' communications yet. The NIS 7.5 million (US$2.13 million) project is an academic demonstrator to be built at …

Microsoft and Rambus will get schwifty in quantum-cum-cryogenic computation collab

Microsoft and Rambus have announced "an expanded collaboration" to develop prototype systems that can optimise memory performance at cryogenic temperatures. The pair first joined forces back in 2015 to investigate new computer architectures in anticipation of the Moore's Law apocalypse. The concern is that demand for realtime …
Venomous snake

Worry not, Python devs – you can program a quantum computer

Australia's Commonwealth Bank has bought a simulated quantum computer that you can program with Python. Yes, that Python – the scripting language created by Guido van Rossum, beloved of web developers and adapted into kiddie-coding tool Scratch. Python may appear an odd choice for a quantum computer, seeing as they're ever-so …
Simon Sharwood, 13 Apr 2017

IBM has cloud access to quantum computer 400 times smaller than D-Wave system

IBM says it will build commercially available quantum computing systems accessed through its cloud platform, but D-Wave has a claimed quantum computer 400 times bigger. Quantum computing has the promise of outperforming today's computers to an extraordinary degree at certain tasks such as factoring very large numbers. It uses …
Chris Mellor, 6 Mar 2017
Hensinger_Quantum_computer_design_part

UK prof claims to have first practical blueprint of a quantum computer

A professor at the University of Sussex says he has the first practical blueprint for a quantum computer capable of solving problems that could take billions of years for a classical computer to compute. Oh yeah? A quantum computer (QC) uses qubits instead of classic binary digits, and each qubit is in a quantum state between …
Chris Mellor, 13 Feb 2017
D-Wave chip

D-Wave goes public with open-source quantum-classical hybrid software

Want to fool around with some quantum-ish computing? D-Wave has open sourced a software tool that prepares optimisation problems to run on its hardware. You can think of the software, qbsolv, as a D-Wave-specific compiler: in the white paper it's posted along with the tool at GitHub, the company's Michael Booth, Steven …

Create a news alert about quantum computing, or find more stories about quantum computing.

Biting the hand that feeds IT © 1998–2018