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An Open Superconducting Quantum Computer

Periodic Reporting for period 2 - OpenSuperQ (An Open Superconducting Quantum Computer)

Okres sprawozdawczy: 2020-04-01 do 2022-03-31

The OpenSuperQ project has built European quantum computer systems of globally competitive performance and is making one available at a central site. These quantum computers are based on integrated electric circuits made from superconducting metals. In order to achieve this goal, OpenSuperQ has integrated the whole stack of hardware and software components necessary.

Quantum computers are expected to play a key role in the digital infrastructure of the future. They promise to solve certain tasks that are hard for even the largest classical computers, thus enhancing the capabilities of society to benefit from automation and digitization as well as creating a competitive advantage for the European industry by permitting unhindered access. As first applications, OpenSuperQ has mapped tasks from computational chemistry and materials science as well as the optimization problems that occur in traffic management and in artificial intelligence to their hardware. In this context, OpenSuperQ has developed a technological ecosystem to further develop quantum computers in Europe and established Europe as a top player in this field.
OpenSuperQ has achieved most of its goals. It has established quantum gate operations with state-of-the art errors with multiple strategies and in multiple laboratories. The measurement and cryogenics systems of OpenSuperQ, that can hold 100 qubits, are ready and the central laboratory has been built up as a fab-less suite for system integration and a stack for external access. The processors of OpenSuperQ were used for a global first in quantum error correction with 17 qubits. A new 25 qubit device in a three-dimensional multi-chip module is showing device performance that are not negatively affected by this high level of integration. A suite of benchmarks from quantum chemistry has been brought forward along with a software stack, allowing to calibrate and optimize operation of large quantum processors.

OpenSuperQ has brought together a scientific partner network for deepened exchange on both the academic and the industrial and use-case driven side.

In terms of exploitation, three spin-off companies (Qruise, Quantum Mad and Atlantic Quantum) have been founded as a result of OpenSuperQ. Additionally, the industry partners (Zurich Instruments, Bluefors, Low Noise Factory) have developed and launched numerous commercial results into the market. Furthermore, based on the successful collaboration within OpenSuperQ, the consortium decided to apply for the Framework Partnership Agreement (OpenSuperQPlus).

In terms of dissemination of results, the OpenSuperQ partners have been very active, with participation in conferences and publishing scientific publications. Additionally, the partners and OpenSuperQ has been featured in many news articles over the project lifetime, as well as participating in various communication campaigns e.g. TV and radio interviews. Additionally, the project partners have regularly aligned with the three boards (Scientific Advisory Board, User Board, Science Board), to share results and achievements and to ensure that results are aligned with user expectations. These regular alignments help to disseminate results to potential users (i.e. User Board members), as well as with potential future research partners (i.e. Science Board members). Furthermore, the project partners have actively communicated their exploitation successes through their own communication channels, as well as the OpenSuperQ project website and Twitter.
OpenSuperQ has improved the device performance in its demonstration of quantum error correction code beyond of the state of the art as its devices are engineered in order to make use of every qubit. It has been among the first to show multi-chip modules with high performance, clearly highlighting the potential for more compact and more connected architectures in future. Its enabling technology in cryogenics and electronics, but also in firmware, are contributing to a sustainable industrial ecosystem that benefits job creation. Its overall results show the potential to be competitive with large, better-funded international players and to catch up relative to their early start.
Photo by Quantum Device Lab, ETH Zurich