Mediaboss Marketing

20 May

Qutech and Intel jointly designed a qubit-controlling chip destined to solve the quantum computers wiring bottleneck. Currently, each qubit in a quantum computer is addressed individually, by a single wire. This stands in the way of a scalable quantum computer since millions of qubits would require millions of wires, explains lead investigator Lieven Vandersypen of Qutech. The solution: taking the control unit inside the cryogenic vessel, where the qubits reside.

Researchers and engineers from Qutech and Intel, therefore, designed a control chip that can withstand the extreme cold. Named Horse Ridge after the coldest place in Oregon, the CMOS IC is based on Intels 22nm low-power FinFET technology. As electronic devices operate very differently at cryogenic temperatures, we used special techniques in the chip design both to ensure the right chip operation and to drive the qubits with high accuracy, says co-lead investigator Edoardo Charbon.

Ultimately, the controller chip and the qubits can be integrated on the same die (as theyre all fabricated in silicon) or package, thus further relieving the wiring bottleneck.

To assess the quality of the Horse Ridge chip, it was compared to a classical room-temperature controller. It turns out the gate fidelity of the system is very high (99.7 percent) and limited not by the controller but by the qubits themselves. Next, the controllers programmability was showcased using the Deutsch-Jozsa quantum algorithm, which is one of the simplest algorithms thats much more efficient on a quantum computer than on a traditional computer. This demonstrated the ability to program the control chip with arbitrary sequences of operations and opens the way to on-chip implementation and a truly scalable quantum computer.

TME offers a premium series from the well-known German manufacturerGoobay. It is called Goobay Plus, and it aims to meet the expectations of not only consumers and professionals, but also the so-called prosumers, i.e.users expecting home multimedia systems of the highest quality. More info.

Go here to read the rest:
Qutech and Intel cut the quantum computer's wires Bits&Chips - Bits&Chips