Imec has used 300mm wafers to demonstrate silicon-based quantum dot spin qubit processing. The devices had an average charge noise of 0.6µeV/√Hz at 1Hz. “In view of noise performance, the values obtained are the lowest charge noise values achieved on a 300mm fab-compatible platform,” according to the Belgian research lab. “By demonstrating those values, repeatedly and reproducibly this work makes ...
Researchers in Oxford have demonstrated a chip-scale trapped-ion quantum logic IC that works with all-electrical drive and a magnetic field. Because it avoids the need for per-qubit lasers, it is more easily scaled to many qubits, according to Oxford Ionics, the company behind it, which is working with the Universities of Oxford and Oregon. Oxford Ionics is also claiming a ...
Zurich Instruments has introduced three 8GHz instruments for controlling and analysing microwave-implemented qubits. “The product line, SHF+, enables high-fidelity qubit control for more reliable manipulation of fragile quantum states,” according to the company. “The ‘+’ versions receive a newly designed analogue front-end with reduced noise floor and phase noise.” SHFSG+ is an 8.5GHz signal generator with four or eight channels, depending ...
For David Manners, Malcolm Penn’s forecast that the semiconductor market will fall 22% next year caught his attention...
Millions of qubits can have their spins synchronised at the same time, according to engineers from the University of New South Wales Sydney, who have developed a way to do it. The challenge is to control the spins of electrons on many quantum dots simultaneously using the magnetic field of a microwave signal. A wire running past qubits is one ...
Intel delivers a 17-qubit superconducting test chip for quantum computing to Dutch lab QuTech.
Engineers at the University of New South Wales have invented an architecture for quantum computing that operates without precise atom placement and allows qubits to be placed hundreds of nanometres apart while remaining coupled. Fabrication should be easily within reach of today’s technology, according to the team, led by Professor Andrea Morello of the University of New South Wales Centre ...
MIT scientists may have found a route to simple molecular qubits that can last for a second. A second is a long time in quantum computing, which struggles with qubits that de-cohere before they can do anything useful. The molecule consists of one atom of sodium and one of potassium. Using this kind of two-atom molecules for quantum information processing ...
Scientists at the University of Sussex found a way to hold ion-based qubits without lasers. See more on this quantum gate “Quantum computing on a small scale using trapped ions is carried out by aligning individual laser beams onto individual ions with each ion,” said the University. “However, a large-scale quantum computer would need billions of quantum bits, therefore billions ...
D-Wave Systems has released some more details about its proposed 2,000qubit quantum computer, at the company’s inaugural users group conference in New Mexico.
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