The UNSW Research Center for Excellence in Computing and Information Technology Center (CQC2T) has shown for the first time that the atomic precision of a 3D device can be built, an important step towards universal quantum computer.
The Australian 2018 director of the year and Professor CQC2T, Michelle Simmons, have shown that they can extend their qubit manufacturing technique atomic glass for multiple silicon glass layers. They get a critical 3D chip architectural component. He joined the world in 2015. This new study has been published today Nature Nanotechnology.
It is the first exhibition that controls the line atomic qubits atomic control lines at first controlling the group. The three axes are very narrow in 3D design.
In addition, the team aligned with nanometer accuracy with three different 3D layers and showed that the only American qubit, that is, in a single measurement, could be a very high fidelity.
"3D device architectures are atomic qubits of silicon," says Simmons. "Being able to constantly rectify mistakes in quantum calculations – an important milestone in our field – you need to monitor many qubits in parallel.
"The only way to do this is to use a 3D architecture, so we've developed and patented vertical architecture architecture in 2015. However, there were still some challenges related to the manufacturing of this multi-device device, which is why we have now shown engineering as our 3D vision is possible years ago some planned mode ".
In this paper, the team has demonstrated how to construct a second flat control or a layer in the first qubits layer.
"It is a very complex process, but in a very simple way, we built it in the foreground and optimized a second layer of growth technique without having an effect on the first layer," said Dr. Joris Keizer, CQC2T researcher and co-author.
"In the past, the critic would say that this is impossible because the surface of the second layer is very rough and you can not use our precision technique, but in this paper we have demonstrated that we have done the opposite of hope."
The team has also demonstrated the precision of the nanometer to align these multiple layers.
"If you type something in the first silicon layer and put a silicone layer on it, you still need to identify your location to align the two-layer components. We've shown a line that's less than 5 nanometers, which is very remarkable," says Dr. Keizer.
In the end, the researchers measured the qubit output of the 3D device, which was called single-shot, that is, with a simple and precise measurement, but with millions of experiments. "This will help us to accelerate faster," says Dr. Keizer.
Looking to market
Professor Simmons says that this research is a milestone in the field.
"We are systematically working towards high-class architecture that will lead us to the latest technology market.
"This is an important development in quantum computing, but SQC is very exciting," says Professor Simmons, founder and director of SQC.
Since May 2017, Quantum Computing Pty Limited (SQC) has been operating and marketing Quantum Computing Pty Limited (SQC), a quantum computer based on Intellectual Property based on intellectual property and Intellectual Property based on CQC2T.
"While CQC2T works outside the large quantum computer for at least ten years, the space continues to be at the forefront of innovation, and concrete results such as these have confirmed our strong position internationally," he concluded.