Researchers at RMIT University have engineered a new type of transistor, the building block for all electronics. Instead of sending electrical currents through silicon, these transistors send electrons through narrow air gaps, where they can travel unimpeded as if in space.
Category: computing – Page 669
Intel and AMD could be looking at some stiff competition in the processor game. Fresh off announcing its new Snapdragon 855 mobile chip, the company has announced the Snapdragon 8cx. It’s for laptops instead of smartphones and is by far the most powerful processor the company has ever made. How can you tell? The “X” in the name stands for “extreme.”
While the Snapdragon 8cx is not the company’s first PC chip (that honor goes to the quickly forgotten Snapdragon 850), it’s the first one that could make Intel take note. Like the 855, the Snapdragon 8cx uses a 7nm manufacturing process. It has the same octa-core design with four high-performance cores based on the Cortex A76 and four low-power cores based on the A55. That’s really the end of the similarities, though.
Qualcomm has cranked the clock speed of all of its “Kryo 495” cores way up in the Snapdragon 8cx, but it won’t say exactly how high. The chip has 10MB of cache between L2 and L3 — the 855 only has 3MB. That makes the Snapdragon 8cx better at running heavy apps, and there’s support for up to 16GB of system memory. You can also check the boxes for NVMe and UFS3.0 storage.
Inspired by the insulation on a humble electrical cable, researchers have found that tiny ceramic particles can make plastic-backed cladding fire-safe.
How do you make a light-weight cladding material that doesn’t catch fire? It’s a question the building industry globally is wrestling with in the wake of the 2017 Grenfell Tower blaze in London that cost the lives of 72 people.
But according to new research, the answer is under your desk in the plastic insulation around the electrical cable powering your computer.
Australian scientists have investigated new directions to scale up qubits—utilising the spin-orbit coupling of atom qubits—adding a new suite of tools to the armory.
Spin-orbit coupling, the coupling of the qubits’ orbital and spin degree of freedom, allows the manipulation of the qubit via electric, rather than magnetic-fields. Using the electric dipole coupling between qubits means they can be placed further apart, thereby providing flexibility in the chip fabrication process.
In one of these approaches, published in Science Advances, a team of scientists led by UNSW Professor Sven Rogge investigated the spin-orbit coupling of a boron atom in silicon.
The longer-term answer is to develop and scale up the quantum communication network and, subsequently, the quantum internet. This will take major investments from governments. However, countries will benefit from the greater security offered13. For example, Canada keeps its census data secret for 92 years, a term that only quantum cryptography can assure. Government agencies could use quantum-secured blockchain platforms to protect citizens’ personal financial and health data. Countries leading major research efforts in quantum technologies, such as China, the United States and members of the European Union, will be among the early adopters. They should invest immediately in research. Blockchains should be a case study for Europe’s Quantum Key Distribution Testbed programme, for example.
Bitcoin and other cryptocurrencies will founder unless they integrate quantum technologies, warn Aleksey K. Fedorov, Evgeniy O. Kiktenko and Alexander I. Lvovsky. Bitcoin and other cryptocurrencies will founder unless they integrate quantum technologies, warn Aleksey K. Fedorov, Evgeniy O. Kiktenko and Alexander I. Lvovsky.