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News from the Network

ARQUE and ParityQC develop architecture for quantum computers based on semiconductor spin qubits

Innsbruck and Aachen, 19 March 2024 – A group of physicists from ARQUE Systems and ParityQC present a version of the ParityQC Architecture specifically for quantum computers based on sparse grids of spin qubits. This quantum computing architecture represents an important step forward for the advancement of spin qubits as a quantum computing platform, efficiently harnessing their advantages such as fast timescales and small size. This invention has been outlined in the paper “Scalable Parity Architecture With a Shuttling-Based Spin Qubit Processor”, out now on arXiv as a pre-print. ARQUE Systems and ParityQC have recently collaborated to develop an efficient quantum computing architecture specific for quantum computers based on spin qubits. In the preprint “Scalable Parity Architecture With a Shuttling-Based Spin Qubit Processor”, the authors (Florian Ginzel, Michael Fellner, Christian Ertler, Lars R. Schreiber, Hendrik Bluhm and Wolfgang Lechner) present the results of this joint research: a novel implementation of the ParityQC Architecture for semiconductor spin qubits. Among the several physical platforms for quantum computing that are currently being investigated worldwide, one platform that has emerged is semiconductor spin qubits in gate-defined quantum dots (QDs). ARQUE Systems, a spin-off of Forschungszentrum Jülich and RWTH Aachen University, is currently developing and commercializing quantum devices based on this promising platform. Spin qubits possess several important qualities that make them a promising platform for quantum computing: they have long coherence times, very fast gate times, a small size and a high scalability potential. In addition, the fabrication of quantum computers based on spin qubits could be relatively easy, making use of the sophisticated manufacturing capabilities of the semiconductor industry. However, as with all quantum computing platforms, there are also specific challenges to overcome, including for example environmental electric noise and cross-talk among qubits. These challenges represented the starting point for the collaboration between ARQUE Systems and the quantum architecture company ParityQC. A group of physicists from the two companies engaged in joint research, with the aim of developing architectures that advance the use of spin qubits for quantum computing while harnessing their unique advantages. The proposal successfully combines ARQUE’s unique approach to spin shuttling (coherently moving the qubits in the chip on demand) with the ParityQC framework for solving optimization problems on quantum computers. The paper explores the implementation and performance of the Parity Quantum Approximate Optimization Algorithm – QAOA (a gate-based algorithm for solving combinatorial optimization problems on a digital quantum computer) on two different architectures: a sparse spin bus architecture and a modular architecture with minimal registers. The authors develop gate sequences and an error model for each architecture and proceed to compare the performances. Realistic errors were considered, and it was found that both architectures can complete one round of Parity QAOA with a low singlequbit error probability, with the spin bus architecture slightly outperforming the modular architecture. The physical errors of both architectures were found to be low enough to decode the final state with a high success probability, implying that the architecture has an intrinsic potential for quantum error mitigation. Overall, the findings in the paper represent a substantial step forward in the development of scalable architectures for quantum computing using spin qubits, a field that has been relatively unexplored in current literature. The research topic will continue to be explored in the ongoing collaboration between ARQUE Systems and ParityQC, two spin-offs that combine a strong background in fundamental research with its practical development and commercialization. Publication: • Florian Ginzel, Michael Fellner, Christian Ertler, Lars R. Schreiber, Hendrik Bluhm, Wolfgang Lechner. Scalable Parity Architecture With a Shuttling-Based Spin Qubit Processor. arXiv:2403.09574 (2024) About ParityQC ParityQC is a spin-off of the University of Innsbruck and the only quantum architecture company worldwide. The company’s focus is on developing blueprints and operating systems for quantum computers. ParityQC collaborates with hardware partners all over the world to jointly build quantum computers for applications ranging from solving optimization problems on NISQ devices to general-purpose, error-corrected quantum computing. About ARQUE Systems ARQUE Systems is a spin-off of Forschungszentrum Jülich and RWTH Aachen University. The founders of ARQUE have decades of experience with semiconductor qubit technology. ARQUE’s mission is to develop and commercialize Quantum Computing systems reaching far beyond current capabilities based on electron spins in silicon. Contact Erika Bettega Marketing & Communications ParityQC e.bettega@parityqc.com / +39 333 2881645

I.E.C.T. – Summer School 2024

We are excited to announce that applications for the I.E.C.T. – Summer School 2024 are now open! This program is specifically designed for students, researchers, and entrepreneurs who are actively working on or have founded a deep-tech or life science startup. It is an exceptional opportunity to gain valuable insights from experienced entrepreneurs, investors, and experts in a highly interactive and dynamic environment. Hosted by I.E.C.T. – Hermann Hauser and Startup.Tirol, the summer school will take place from August 22nd to August 28th, 2024, in beautiful Innsbruck, Tyrol. The I.E.C.T. – Summer School is designed to equip participants with the skills and knowledge necessary to take their startups to the next level. The programme features a wide range of activities, including workshops, keynotes, mentoring sessions, and networking events. Participants will also have the opportunity to pitch their ideas and receive valuable feedback from a panel of investors. As an added bonus, I.E.C.T. is well connected to the Cambridge-cluster, one of the leading innovation-ecosystems in the world. The summer school is a unique opportunity to work with world-renowned experts and mentors from this ecosystem, and to gain insights into the latest trends and best practices in the deep-tech and life science startup scene. We strongly encourage you to apply for this programme. It is an excellent opportunity to learn from the best in the field and to connect with like-minded individuals from around the world. In addition, applicants will have the opportunity to apply for a fellowship, and if awarded, their participation in the programme will be free of charge. To learn more about the programme and the application process, please visit the I.E.C.T. – Summer School 2024 website: https://www.iect.at/programmes/iect-summer-school

14 April is World Quantum Day

QBN is thrilled to promote The World Quantum Day and is committed to pushing awareness and understanding of quantum technologies! This fantastic initiative, World Quantum Day, launched from quantum scientists around the World on 14 April 2021, aims at engaging the general public in the understanding and discussion of Quantum Science and Technology. It is a decentralized and bottom-up initiative, inviting all scientists, engineers, educators, communicators, entrepreneurs, technologists, historians, philosophers, artists, museologists, producers, etc., and their organisations, to develop their own activities. Let´s promote Quantum together! More about World Quantum Day You are welcome to join the Online Leadership Session for free and gain invaluable insights! 15 Apr | Quantum Leadership Session: Quantum Computing – Status Quo, online

Cold Spin-Electronics for Quantum Technologies

The demand for electronics that operate at low temperatures is growing and becoming ever more important, especially for applications in the field of quantum computing technologies. This is the focus of the CONDOR project that was launched earlier this year. The Fraunhofer IPMS, Dresden and the Max Planck Institute for Microstructure Physics, Halle, are collaborating on innovative spin-based memory and logic components that operate at low temperatures. Electronics that operate at low temperatures are commonly referred to as cryogenic electronics. Their importance has increased significantly in recent years due to the interest in the development of quantum computing technologies that go beyond CMOS, as well as for use in other domains, such as space. In quantum technologies it is often necessary to cool the quantum bits, the qubits, to cryogenic temperatures in order to extend the time over which they can operate. Therefore, it is essential to develop electronic components that can operate at the same low temperatures to guarantee the proper performance of future quantum computing systems. The Fraunhofer Institute for Photonic Microsystems IPMS in Dresden and the Max Planck Institute of Microstructure Physics (MSP) in Halle have been working together since the beginning of this year on the project “CONDOR – Superconducting spintronic devices for cryogenic electronics”. The cooperation program combines the excellent materials and device expertise and deep understanding of spin-based phenomena in Prof. Stuart Parkin’s group at the Max Planck Institute of Microstructure Physics with the application-oriented research and infrastructure capabilities of the Fraunhofer IPMS. The novel cryogenic components to be developed in the three-year project will enable low-energy superconducting electronics for stand-alone superconducting computer systems as well as for integration with emerging quantum computer systems. Prof. Dr. Stuart Parkin of the Max Planck Institute says: “CONDOR combines the expertise in spintronic and superconducting materials and devices at the Institute of Microstructure Physics, with the logic, memory and 300 mm wafer-scale integration expertise at Fraunhofer IPMS.”  Dr. Benjamin Lilienthal-Uhlig of Fraunhofer IPMS adds: “The Fraunhofer IPMS and the Max Planck Institute for Microstructure Physics have already successfully collaborated on the RASCAL project, where novel spintronic memory devices operating at room temperature were developed. These results form an important part of the CONDOR project.”   The CONDOR project aims to develop a novel superconducting switch that can be used in cryogenic logic and memory devices.  The switch is formed from a narrow superconducting wire to which a gate voltage is applied. The project will first unravel the origin of the suppression of superconductivity in such nanowires by the gate voltage and, thereby, develop superconducting field-effect transistors in both lateral and vertical geometries that operate at CMOS-compatible voltages. Finally, these cryogenic transistors will be used both as logic elements and as switches for accessing magnetic memory elements to enable cryogenic non-volatile memories with low power consumption. The memory devices are magnetic tunnel junctions specially designed to operate at low temperatures. These novel cryogenic logic and memory devices will thereby enable cryogenic electronic chips using superconducting materials and phenomena. The final goal of the project is the realization of components based on low-energy superconducting electronics that can be used, at wafer scale, for autonomous superconducting computing systems, as well as for emerging quantum computing systems.     About Fraunhofer IPMS Fraunhofer IPMS is one of the leading international research and development service providers for electronic and photonic microsystems in the application fields of intelligent industrial solutions and manufacturing, medical technology and health, and mobility. In two state-of-the-art clean rooms and with a total of four development sites in Dresden, Cottbus and Erfurt, the institute develops innovative MEMS components and microelectronic devices on 200 mm and 300 mm wafers. Services range from consulting and process development to pilot production. With the Center Nanoelectronic Technologies (CNT), the Fraunhofer IPMS offers applied research on 300 mm wafers for microchip producers, suppliers, device manufacturers and R&D partners. About the Max Planck Institute of Microstructure Physics CONDOR is based within the NISE (Nanosystems from Ions, Electrons and Spins) department. NISE has substantial experimental research programs that are focused on novel atomically-engineered materials with useful functionalities. Of particular interest are spintronic materials and devices, superconductors, topological metals and insulators, proximity induced phenomena, and superconducting spintronics as well as beyond CMOS computing devices and systems especially for neuromorphic and quantum computing technologies. NISE is involved in numerous collaborative research projects with academic and industry partners from Germany and around the world (including Europe, North America, and Asia). The department has state-of-the-art experimental capabilities including a modern clean-room, aberration-corrected transmission electron microscopy, a super-resolution 3D printer for complex 3D nano-structures, and a wide range of measurement tools for optical, magnetic and transport properties for temperatures from above room temperature down to milli-kelvin temperatures. Download press release [ PDF  0,18 MB ]  Pressemitteilung zum Download [ PDF  0,17 MB ] 

QBN Events

WG Quantum Computing & Applications: Advances in Healthcare

Join us in the WG meeting where we will work together on our current objective to develop a use case database. First will be presented the current status and then we will in an interactive session tackle the next steps. Furthermore we will engage in pivotal discussions about harnessing the power of quantum computing for […]

11.04.2024 3:00 pm

QBN Quantum Leadership Session

Quantum Leadership Session: Quantum Computing – Status Quo

Welcome to our Quantum Leadership Session! Join us for an insightful exploration into the current landscape of quantum computing, featuring speakers from industry key players.   Our session will dive deep into the theme of “Quantum Computing Status Quo,” offering valuable insights into the latest advancements, challenges, and opportunities in the field. Hear from distinguished […]

15.04.2024 3:00 pm

WG Quantum Communication & Cybersecurity: The Role of Standardization and Certification

Join us for an insightful WG meeting where we will work together on our WG objectives. First will be presented the WG strategy for the next two years by the WG leaders, followed by an interactive session dedicated to work on our next steps.Furthermore, we will explore the crucial roles of standardization and certification in […]

29.04.2024 3:00 pm

QBN Quantum Leadership Session

Quantum Leadership Session: Quantum Computing – Benchmarking

Welcome to our Quantum Leadership Session! Join us for an enlightening discussion focused on Quantum Computing Benchmarking, featuring insights from industry leaders and experts.   Our session will center around the critical topic of “Quantum Computing Benchmarking,” providing valuable insights into the methodologies, challenges, and advancements in assessing and comparing quantum computing systems. Gain a […]

04.06.2024 3:00 pm

Quantum Calls

New funding call: Sovereign. Digital. Connected.

Die Fördermaßnahme ist eingebettet in das Forschungsprogramm zu Kommunikationssystemen „Souverän. Digital. Vernetzt.“ sowie in die übergreifende Leitinitiative „Hyperkonnektivität“ des Bundesministeriums für Bildung und Forschung (BMBF). Innerhalb dieser Programmatik stellt der Transfer von Forschungsergebnissen in die Anwendung ein zentrales Ziel dar. Deutsche Forschungseinrichtungen im Bereich zukünftiger Kommunikationssysteme haben sich eine herausragende internationale Reputation erarbeitet. Im Rahmen […]

Deadline: 31.03.2024 | 12:00 am

New funding call: Applied quantum technologies

The national funding bodies from 15 countries (Austria, Singapore, Belgium (Wallonia), South Korea, Denmark, Spain, Finland, Sweden, France, Switzerland, Germany, Türkiye, Israel, United Kingdom, Lithuania) have allocated funding for organisations collaborating on international R&D projects in the field(s) of applied quantum technology. Scope Quantum technology includes many layers of technology from the individual modalities of quantum […]

Deadline: 09.05.2024 | 4:00 pm

New funding call: European Quantum Excellence Centres (QECs) in applications for science and industry

Expected outcome: The creation of two European Quantum Excellence Centres in applications, covering science and industry, will establish a one-stop-shop for industry, academia, and the wider quantum technology user community. This in turn will accelerate the discovery of new quantum-oriented applications and foster their knowledge and uptake. The QECs should be technology-agnostic with a focus […]

Deadline: 14.05.2024 | 5:00 pm

New funding call: Grant scheme designed to protect IP rights of EU-based SMEs

The Ideas Powered for business SME Fund is a grant scheme designed to help EU-based small and medium-sized enterprises (SMEs) protect their intellectual property (IP) rights. The SME Fund is a European Commission initiative implemented by the European Union Intellectual Property Office (EUIPO) and will run from 22 January 2024 to 6 December 2024. Who […]

Deadline: 06.12.2024 | 12:00 am

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