Next Big Future March 5, 2019 IBM has published a roadmap for improving quantum computers based on a “quantum volume” which is an architecture-neutral metric. It measures the useful amount of quantum computing done by a device in space and time. The results on the IBM Q System One indicate its performance is just over the threshold for 16. IBM roadmap is to double quantum volume every year. IBM wants to improve error rates 100 times from 1% to 0.01%. They plan to do this by increasing coherence times from 0.5 milliseconds to 1-5 milliseconds. The hope is to achieve quantum […]
Tag Archives: Quantum computer
Tests show integrated quantum chip operations possible
Phys.org October 30, 2018 An international team of researchers (Australia, the Netherlands, Japan, USA – industry) has demonstrated an integrated device platform incorporating a silicon metal-oxide-semiconductor double quantum dot that is capable of single-spin addressing and control via electron spin resonance, combined with high-fidelity spin readout in the singlet-triplet basis. They have shown that they can combine this with a special type of quantum readout process known as Pauli spin blockade, a key requirement for quantum error correcting codes that will be necessary to ensure accuracy in large spin-based quantum computers. The new integrated design can be manufactured using well-established […]
Multi-functional quantum bits for future computers
Eurekalert October 29, 2018 Researchers in Germany are working on Scalable Rare Earth Ion Quantum Computing Nodes (SQUARE) within the framework of the Quantum Technology Flagship funded by the European Commission. SQUARE is aimed at establishing rare earth ions that can be addressed separately as basic building blocks for scalable quantum technologies. In particular, it is planned to demonstrate functional elements of a multi-qubit quantum register that can be read out optically and to realize building blocks of a quantum network. Their work was presented at a recent conference in Germany… read more.