ARQUE Systems GmbH

𝐅𝐮𝐭𝐮𝐫𝐞 𝐨𝐟 𝐂𝐨𝐦𝐩𝐮𝐭𝐢𝐧𝐠 - 𝐦𝐚𝐝𝐞 𝐢𝐧 𝐍𝐑𝐖 Science thrives on dialogue with society. Networking between the various partners is important to ensure that ideas and technologies from research find their way into society and the economy. The broad expertise of the research institutions should benefit the economy in an even more targeted manner and thus further increase its international competitiveness. At the same time, the improved utilisation of inventions, the promotion of patents and the founding of new businesses by young scientists are important. How ARQUE Systems GmbH received excellent support from Forschungszentrum Jülich and RWTH Aachen University during its spin-off and how the Forschungszentrum Jülich supports researchers in everyday life with spin-off projects and what internal funding programmes are available was explained by our Managing Director Dr.-Ing. Markus Beckers in yesterday's panel discussion at the 𝐅𝐮𝐭𝐮𝐫𝐞 𝐨𝐟 𝐂𝐨𝐦𝐩𝐮𝐭𝐢𝐧𝐠 - 𝐦𝐚𝐝𝐞 𝐢𝐧 𝐍𝐑𝐖 event, which was organised by NMWP.NRW and Forschungszentrum Jülich. Unlocking the potential of quantum computing requires orders of magnitude more quantum bits than current systems can foreseeably achieve. ARQUE Systems GmbH uses electron shuttling to realise a scalable quantum computer architecture. To solve this problem, the spin-off ARQUE Systems and its home institution, the JARA Institute for Quantum Information at RWTH Aachen University and Forschungszentrum Jülich, are working with Infineon Technologies to research so-called semiconductor spin qubits, in which individual electrons are captured electrostatically and electron spins are utilised for computing operations. The qubits typically have a diameter of 100-200 nm and are captured in a semiconductor structure by applying electrodes (≈ 50 nm wide) to the surface at 50 nm intervals and then applying suitable voltages. Semiconductor spin qubits offer the unique advantage that they are directly compatible with industrial CMOS technology available in Germany: the only technology that makes it possible to produce many millions of identical copies of nanoscale basic components, the transistors, on a very small surface. Thanks also to all participants for the great event. NRW can be proud of its strength in the field of future computing. Dr. Kirsten Bender Astrid Lambrecht Thorsten Menne Ministerium für Wirtschaft, Industrie, Klimaschutz und Energie des Landes NRW Dr.-Ing. Harald Cremer Ministerium für Kultur und Wissenschaft des Landes Nordrhein-Westfalen Dr. Roland Krumm Daniel Schall Dr. Matthias Grosch Sebastian Kindel Jan Timper Sebastian Luber NeuroSYS GEMESYS Universität Siegen Institute for Photonic Quantum Systems (PhoQS) Universität Paderborn eleQtron GmbH Please read the attached article or the exciting other articles - see here for the link in the first comment.

#Good #ideas and #findings from the #laboratory are #turned into #applications with #concrete #benefits. How do we want to live in the future? And how will our visions become reality? Scientists at Forschungszentrum Jülich are already working on solutions today. They have ideas that will make life better for us all. But it doesn't stop at ideas. Good ideas and findings from the laboratory are turned into applications with concrete benefits. How? The current issue of Endeavours magazine shows you how. ARQUE Systems GmbH is featured on pages 14-17 under the title "Rechner der Zukunft", where our CEO Dr.-Ing. Markus Beckers and Scientific director Hendrik Bluhm explain how a semiconductor quantum processor "made in Germany" is to be realised together with Infineon Technologies. Sebastian Luber Claus Dahl For this, but also for all other topics, a clear #reading #recommendation If you would like to find out more about how good ideas and and findings from the laboratory into concrete benefits, you are welcome to come to the to the NMWP.NRW theme evening "Future of Computing" on 2 July 2024 at Forschungszentrum Jülich. EIN Quantum NRW Norbert Drewes Christian Cremer Dr. Marck Lumeij

Building a #scalable #quantum #computer is a marathon: we are approaching the goal (Qu)bit by (Qu)bit - even if the journey is still long! But we #love the #sporting #challenge @ ARQUE Systems GmbH!   A Nature subscription really pays off at the moment: our paper „Mapping of valley splitting by conveyor-mode spin-coherent electron shuttling“ with the colleagues from Forschungszentrum Jülich, RWTH Aachen University and Polish Academy of Sciences has been published in Nature!   Our mapping method may become a valuable tool for engineering Si/SiGe heterostructures for scalable quantum computing!    In Si/SiGe heterostructures, the low-lying excited valley state seriously limits the operability and scalability of electron spin qubits. For characterizing and understanding the local variations in valley splitting, fast probing methods with high spatial and energy resolution are lacking. Leveraging the spatial control granted by conveyor-mode spin-coherent electron shuttling, we introduce a method for two-dimensional mapping of the local valley splitting by detecting magnetic field-dependent anticrossings of ground and excited valley states using entangled electron spin-pairs as a probe. The method has sub-μeV energy accuracy and a nanometer lateral resolution. The histogram of valley splittings spanning a large area of 210 nm by 18 nm matches well with statistics obtained by the established but time-consuming magnetospectroscopy method. For the specific heterostructure, we find a nearly Gaussian distribution of valley splittings and a correlation length similar to the quantum dot size. Our mapping method may become a valuable tool for engineering Si/SiGe heterostructures for scalable quantum computing. Link to the paper in the first comment... Enjoy reading! Arnau Sala Bingjie Chen Tobias Offermann Ran Xue Lino Visser Jhih-Sian Tu Lars Schreiber Dr.-Ing. Markus Beckers Sebastian Kindel Simon Humpohl © Image: René Otten

We are excited to have been recognised as finalists in the Science Startups (#FallingWallsVenture)  category of the #GlobalCall24. This recognition brings us one step closer to the Science Breakthroughs of the Year, which will be celebrated at the #FallingWalls #ScienceSummit24 November 7-9. Stay tuned for more updates. Falling Walls Foundation   RWTH Aachen University Forschungszentrum Jülich RWTH Innovation Infineon Technologies EIN Quantum NRW By exploiting quantum mechanical phenomena, quantum computing represents a fundamental paradigm shift for information processing and can enable the solution of numerous highly industrially relevant computing problems that are currently unsolvable in practice. The quantum effects utilized not only elude everyday experience, but also only appear on the smallest size scales and are sensitive to external disturbances. The development of a quantum processor is therefore associated with special requirements in terms of manufacturing processes and material quality as well as control electronics and operating conditions. Quantum bits (qubits), the elementary components of a quantum computer, are therefore inevitably subject to errors, which can be compensated for by quantum error correction methods by encoding logical qubits for the implementation of algorithms using a multiple of physical qubits. This results in the need for quantum processors with several million qubits, which exceeds the potential of today's qubit platforms by many orders of magnitude. ARQUE Systems GmbH offers a patented solution here! Dr.-Ing. Markus Beckers Sebastian Luber Sebastian Kindel Claus Dahl Simon Humpohl Lars Schreiber

We've done it for the third time in a row: our latest article has now been published again in #Nature:   The(#patented) #SpinBus #architecture for #scaling #spin #qubits with #electron #shuttling   Quantum processor architectures must enable scaling to large qubit numbers while providing two-dimensional qubit connectivity and exquisite operation fidelities. For microwave-controlled semiconductor spin qubits, dense arrays have made considerable progress, but are still limited in size by wiring fan-out and exhibit significant crosstalk between qubits. To overcome these limitations, we introduce the SpinBus architecture, which uses electron shuttling to connect qubits and features low operating frequencies and enhanced qubit coherence. Device simulations for all relevant operations in the Si/SiGe platform validate the feasibility with established semiconductor patterning technology and operation fidelities exceeding 99.9%. Control using room temperature instruments can plausibly support at least 144 qubits, but much larger numbers are conceivable with cryogenic control circuits. Building on the theoretical feasibility of high-fidelity spin-coherent electron shuttling as key enabling factor, the SpinBus architecture may be the basis for a spin-based quantum processor that meets the scalability requirements for practical quantum computing.   The work was carried out with outstanding colleagues from the Forschungszentrum Jülich & RWTH Aachen University. Infineon Technologies Dr.-Ing. Markus Beckers Lars Schreiber Harsh Bhardwaj René Otten Ran Xue Inga Seidler Sebastian Kindel Simon Humpohl Roberta Caterino Sebastian Luber Claus Dahl https://lnkd.in/e6kWcjM4

#social #responsibility and #sustainable #commitment ARQUE Systems GmbH supports #Dreiland-#Jugendhilfe gGmbH   At a time when social responsibility and sustainable commitment are becoming increasingly important, it is very important for us at ARQUE Systems GmbH to enter into partnerships that not only serve our own business objectives, but also make a positive contribution to society. One such valuable partnership is our support for Dreiland-Jugendhilfe gGmbH. This organisation provides outpatient and inpatient educational support for children, young people and families in the Aachen region and in the German-speaking Community of Belgium. But why do we support this organisation in particular?   Here are some convincing reasons:   1. Social responsibility and community support Dreiland-Jugendhilfe gGmbH makes a decisive contribution to the promotion and support of children, young people and families in difficult life situations. By supporting them, you are directly helping to improve the quality of life and future prospects of young people in your community - perhaps one of these people will go on to become a quantum physicist. We are convinced that this strengthens the social fabric.   2. Sustainable development and education The basis of the educational work of Dreiland-Jugendhilfe is a culture of transparency and the possibility for young people to influence their life and learning process. This approach promotes the development of self-confidence, a sense of responsibility and social skills. By supporting such educational initiatives, we contribute to the sustainable development of society by providing young people with the tools and skills they need to lead successful and self-determined lives.   3 Shared values and educational principles Dreiland-Jugendhilfe works on the basis of emotional care, acceptance, respect and curiosity. These values are not only valuable in our educational work, but also inspire our corporate culture. We believe that promoting such values contributes to a more harmonious, creative and productive working environment.   Conclusion ARQUE Systems GmbH's support of Dreiland-Jugendhilfe gGmbH is more than just a charitable gesture. It is an investment in the future of young people and in the long-term development of society. By supporting this organisation, we are not only showing social responsibility. It's a win-win situation for all!   If this has aroused your curiosity and you would also like to support Dreiland-Jugendhilfe gGmbH, please take a look at the link in the first comment. Next week we will be back with the latest results from our laboratory - stay tuned and enjoy the weekend! Dr.-Ing. Markus Beckers Sebastian Kindel Simon Humpohl    

🚀 Exciting Milestone Alert at ARQUE Systems GmbH 🚀 We are thrilled to share a significant leap forward in our journey toward scalable quantum computing: the successful industrial fabrication of our innovative shuttling-array architecture, in partnership with Infineon Technologies. This marks a pivotal step in bringing our #truly #scalable #qubit #platform to live. 🔍 What sets this achievement apart? The shuttling-array is composed of numerous unit cells connected by our patented shuttlers, each capable of hosting multiple qubits and leaving room for cryogenic control electronics. This integration is crucial to overcoming the primary challenge in quantum technology: scalability. 📸 Attached is a scanning electron microscope (SEM) image from Pascal Muster Claus Dahl Sebastian Luber of our fabricated architecture. This image not only showcases our technological precision but also symbolizes our vision coming into sharper focus. 🌐 With this development, ARQUE Systems is not merely fabricating components; we are crafting a foundation for a truly scalable, fully industrially fabricated quantum computer. Together with our outstanding partners such as Forschungszentrum Jülich and RWTH Aachen University. Our design uniquely addresses critical aspects such as on-chip integration of necessary electronics and efficient qubit interconnectivity—essential for transitioning from experimental setups to real-world applications. 💡 As we continue to advance, our commitment remains strong: to deliver a quantum computing solution that is not only powerful and scalable but also practically viable for industrial applications. 🔗 Stay tuned for more updates as we push the boundaries of what's possible in the realm of quantum computing. Dr.-Ing. Markus Beckers Sebastian Kindel Simon Humpohl #QuantumComputing #Innovation #Technology #Partnership #Infineon #Scalability #QuantumFuture #ARQUESystems

#North #Rhine-#Westphalia #strong #quantum #ecosystem North Rhine-Westphalia is a very lively quantum ecosystem. With its uniquely high density of universities and research institutions, it has developed into one of the leading locations for quantum research. In recent weeks and months, we have once again intensified our dialogue with this ecosystem - bundled in the opening of the EIN Quantum NRW office. As Silke Krebs, State Secretary in the Ministry of Economic Affairs, Industry, Climate Protection and Energy of the State of North Rhine-Westphalia, rightly says: ‘Quantum technology offers enormous opportunities for digital and efficient processes and thus also for the transformation towards the economical use of resources and decarbonisation. In North Rhine-Westphalia, we are leading the way and supporting our companies with our roadmap in a targeted manner to utilise the diverse potential of this future technology and strengthen our own competitiveness with forward-looking innovations. Industry and science can work closely together to expand their expertise in the field of quantum technology and provide important impetus for further technological development in our state.’ The exchange of ideas here in Aachen in recent weeks is impressive proof of this. The Quantum Technologies team led by Fabian Brings, Sebastian Dittrich and Jonas van Bebber at the Bechtle IT system house in Bonn/Cologne, for example, has dedicated itself to the mission of making new quantum technologies usable for IT. Furthermore, Rene Weißing, Dr. Matthias Grosch, Hendrik Köster, Dr.-Ing. Harald Cremer and Daniel Stadler from NMWP Management GmbH. A great partner in the identification and implementation of innovation and technology topics in the high-tech and deep-tech sector. They also focus on the key technologies of quantum technologies as well as the neighbouring application and technology fields. We look forward to further dialogue and joint projects. But for now, a happy and sunny Father's Day 2024 to all our supporters like Forschungszentrum Jülich RWTH Aachen University RWTH Innovation Infineon Technologies and friends! Dr.-Ing. Markus Beckers Sebastian Kindel Simon Humpohl

#Scalable #industrially #fabricated #qubit #architecture In collaboration with our partner Infineon Technologies , we're not just building quantum computers; we're crafting the blueprint for the quantum future. ARQUE Systems GmbH vision? A #Fully #Industrially #Fabricated, #Truly #Scalable, #Quantum #Computer that can transform the industry! At ARQUE Systems GmbH, we’re pursuing true scalability in quantum computing by harnessing the unique properties of silicon spin qubits alongside industrial fabrication techniques. We have previously reached significant milestones, including the development of a successful medium-range interconnect through our patented shuttling architecture, and the industrial fabrication of our electron shuttlers. Now, we’re excited to unveil what our truly scalable, industrially fabricated qubit architecture looks like. Our approach features a dense grid of connected unit cells that can be seamlessly expanded to millions, setting a #new #standard for #quantum #computing #scalability. The design incorporates shuttlers to connect qubit initialization/readout and manipulation zones, as well as to connect adjacent unit cells. Importantly, this grid also accommodates the on-chip integration of necessary electronics, effectively addressing the wiring challenges that will limit other qubit platforms from achieving large-scale qubit arrays. The future is now! Sebastian Luber Dr.-Ing. Markus Beckers Claus Dahl Sebastian Kindel Forschungszentrum Jülich RWTH Aachen University RWTH Innovation

The paper "Local laser-induced solid-phase recrystallization of phosphorus-implanted Si/SiGe heterostructures for contacts below 4.2 K" has now been published. What a wonderful weekend read in the rainy weather outside… Thanks to the great team from: RWTH Aachen University, Forschungszentrum Jülich Universität RegensburgFraunhofer ILT IHP ARQUE Systems GmbH   Si/SiGe heterostructures are of high interest for high-mobility transistor and qubit applications, specifically for operations below 4.2K. In order to optimize parameters such as charge mobility, built-in strain, electrostatic disorder, charge noise, and valley splitting, these heterostructures require Ge concentration profiles close to monolayer precision. Ohmic contacts to undoped heterostructures are usually facilitated by a global annealing step activating implanted dopants, but compromising the carefully engineered layer stack due to atom diffusion and strain relaxation in the active device region. We demonstrate a local laser-based annealing process for recrystallization of ion-implanted contacts in SiGe, greatly reducing the thermal load on the active device area. To quickly adapt this process to the constantly evolving heterostructures, we deploy a calibration procedure based exclusively on optical inspection at room temperature. We measure the electron mobility and contact resistance of laser-annealed Hall bars at temperatures below 4.2K and obtain values similar or superior to that of a globally annealed reference sample. This highlights the usefulness of laser-based annealing to take full advantage of high-performance Si/SiGe heterostructures. Link to the paper in the first comment...   Malte Neul Dr. Christian Vedder Dr.-Ing. Markus Beckers Sebastian Kindel Simon Humpohl