Cookie Consent by Free Privacy Policy Generator

Intel and Qutech Researchers Make Advance Toward Clearing up Critical Quantum Bottleneck

Intel Qutech
Intel Qutech
Intel and Qutech scientists demonstrated high-fidelity two-qubit control using Horse Ridge, Intel’s cryogenic qubit control processor.(Credit: Intel Corporation)

A research team led by Intel and Qutech scientists demonstrated high-fidelity two-qubit control with a qubit control processor. The team, which reported their findings in a research paper published in Nature Machine Intelligence, used Horse Ridge, Intel’s cryogenic qubit control processor.

They report that the results address a critical challenge in the scalability of quantum interconnects — the “interconnect bottleneck.” This bottleneck appears between the quantum chip in a dilution refrigerator and the room-temperature electronics controlling the quantum chip. The team adds that if those electronics can be designed to operate at high fidelity at cryogenic temperatures, they can ultimately be integrated with the qubits on the same die or package, overcoming the ‘wiring bottleneck.’

According to the researchers: “We demonstrate the capabilities of the control chip by programming a number of benchmarking protocols, as well as the Deutsch–Josza algorithm, on a two-qubit quantum processor. These results open up the way towards a fully integrated, scalable silicon-based quantum computer.”

The study offers two critical achievements, according to the researchers. First, an industry standard randomized benchmarking test in the quantum field has been used for the first time, which demonstrates that the Horse Ridge cryogenic control chip achieves the same fidelity as commercial room temperature electronics when controlling a two-qubit processor. The use of randomized benchmarking may mean that Horse Ridge can achieve qubit operations of 99.99 percent fidelity.

Also, the Intel-Qutech researchers said they showed the programmability of the controller using a two-qubit algorithm called the Deutsch–Jozsa algorithm, a simple algorithm that is much more efficient on a quantum computer than a traditional computer. Overall, the results indicate Horse Ridge can control multiple qubits on a single radio frequency line – also known as frequency multiplexing.

“Both these advances indicate that it may be possible to fully integrate the controller chip and the qubits on the same die (as they are all fabricated in silicon) or package, thus further relieving the wiring bottleneck and solving a major roadblock on the path toward quantum scalability,” the team reported.

The research team includes: Xiao Xue, Bishnu Patra, Jeroen P. G. van Dijk, Nodar Samkharadze, Sushil Subramanian, Andrea Corna, Brian Paquelet Wuetz, Charles Jeon, Farhana Sheikh, Esdras Juarez-Hernandez, Brando Perez Esparza, Huzaifa Rampurawala, Brent Carlton, Surej Ravikumar, Carlos Nieva, Sungwon Kim, Hyung-Jin Lee, Amir Sammak, Giordano Scappucci, Menno Veldhorst, Fabio Sebastiano, Masoud Babaie, Stefano Pellerano, Edoardo Charbon and Lieven M. K. Vandersypen.

The Future of Materials Discovery: Reducing R&D Costs significantly with GenMat’s AI and Machine Learning Tools

When: July 13, 2023 at 11:30am

What: GenMat Webinar

Jake Vikoren

Jake Vikoren

Company Speaker

Deep Prasad

Deep Prasad

Company Speaker

Araceli Venegas

Araceli Venegas

Company Speaker

Matt Swayne

With a several-decades long background in journalism and communications, Matt Swayne has worked as a science communicator for an R1 university for more than 12 years, specializing in translating high tech and deep tech for the general audience. He has served as a writer, editor and analyst at The Quantum Insider since its inception. In addition to his service as a science communicator, Matt also develops courses to improve the media and communications skills of scientists and has taught courses. [email protected]

Share this article:

Relevant

The Future of Materials Discovery: Reducing R&D Costs significantly with GenMat’s AI and Machine Learning Tools

When: July 13, 2023 at 11:30am

What: GenMat Webinar

Jake Vikoren

Jake Vikoren

Company Speaker

Deep Prasad

Deep Prasad

Company Speaker

Araceli Venegas

Araceli Venegas

Company Speaker

Keep track of everything going on in the Quantum Technology Market.

In one place.

Related Articles

Explore our intelligence solutions

Join Our Newsletter