Quantum Computing

In a proposal that reads more like the script to a new sci-fi movie, researchers are suggesting a unique way to tackle one of the core problems of quantum computing. If deployed, it would redefine how we think of "cloud computing."

Amazon has unveiled its first quantum computing chip today, after four years in the making. Dubbed Ocelot, it uses 'cat qubits' for improved error correction, and could lead to cheaper practical quantum computing in the years to come.

Microsoft says it's made a major breakthrough in quantum computing capabilities with Majorana 1, its first quantum chip, and the first of its kind to be powered by what are called topological qubits. Here's what that means for quantum computing.

Random numbers are critical to encryption algorithms, but they're nigh-on impossible for computers to generate. Now, Swedish researchers say they've created a new, super-secure quantum random number generator using cheap perovskite LEDs.

Three teams of scientists have achieved a major milestone in quantum computing. All three groups demonstrated better than 99 percent accuracy in silicon-based quantum devices, paving the way for practical, scalable, error-free quantum computers.

An Australian/German company is developing powerful quantum accelerators the size of graphics cards. They work at room temperature, undercutting and outperforming today's huge, cryo-cooled quantum supercomputers, promising industry-wide disruption.

A quantum internet could one day allow quantum computers to team up and tackle some gigantic problems. Researchers at Toshiba are a step closer, demonstrating quantum communications sent over a record-breaking 600 km (373 miles) of optic fiber.

Progress on quantum computers may soon stall. Cosmic rays streaming to Earth can interfere with the integrity of information in quantum computers, and now an MIT team has shown just how vulnerable they are and what it might take to protect them.

Current-gen quantum computing "qubits" need to be kept incredibly cold – below 0.1 Kelvin (-273.05 °C/-459.5 °F). But new "hot qubits" developed at UNSW can work 15 times hotter, opening the door to radically smaller, cheaper quantum computers.

Scientists have achieved quantum teleportation between two computer chips for the first time, sending information between them without being physically or electronically connected. The feat opens the door for quantum computers and quantum internet.

Google has announced that it has achieved “quantum supremacy,” the point where a quantum computer successfully performs an operation considered impossible for traditional computers. But rival IBM disagrees that this has been achieved at all.

Researchers from Johns Hopkins University have found a superconducting material naturally stable in two states at once, which is useful for quantum computers.

Practical quantum computers may be another step closer to reality, thanks again to graphene. The bits of information in quantum computers (qubits) can exist in two states at once, and now researchers have managed to record just how long that superposition state can last in a qubit made of graphene.

Researchers at the University of Sussex claim to have produced a method that removes lasers from quantum logic gates, thereby removing one of the largest stumbling blocks to producing a workable, full-sized quantum computer system

In one more step on the road to a functional quantum computer, researchers at Harvard University and Sandia Ion Beam Laboratory claim to have created the very first "bridge" that could effectively link strings of quantum computers together in a single networked unit.

Chinese scientists claim to have launched the world's first quantum communications satellite with which they intend to experiment with quantum communication and teleportation from space, in the hope of one day producing an entire global network of quantum communication systems.