QBN is Best Ambassador for EU Sovereignty! We are incredibly proud to share that QBN is the winner of La French Tech in Germany Awards 2024 in the category “Best Ambassador for EU Sovereignty”. This is a huge recognition of our QBN team´s effort and our CEO, Johannes Verst’s dedication to promoting European competitiveness and sovereignty. QBN is the one-stop-shop for quantum technology stakeholders and end-users in Europe serving as platform for collaboration, intelligence and business. Together with our 100+ international members, we are dedicated to building a resilient and sustainable quantum economy in Europe by promoting growth acceleration, technological advancements and the trialogue between industry, science and politics. Our goals: – Lead in Quantum Innovation: Turn Europe’s world class quantum research into a global industrial leadership. – European Sovereignty: Ensure Europe’s independence and security with advanced technologies. – Build a Sustainable Future: Create a strong, future-proof ecosystem that supports Europe’s tech and sustainability goals. We invite everyone to join our mission: Kickstart the European economy with deeptech as key driver! Turning Europe into a global industrial powerhouse and enable a secure, sovereign and united future!

Industrial users of cloud-based quantum computing need to assess the capabilities and advantages of different systems for different application areas. There are many metrics that are difficult or impossible to distinguish, especially for end-users. By defining requirements and criteria for the evaluation of different quantum computers, quantum algorithms and their implementation, QBN together with their applied research partner Fraunhofer FOKUS essentially contributes to the development of a strong quantum computing industry and helps end-users to navigate in this promising, dynamic technology field. As winner of the DIN connect challenge, QBN together with Fraunhofer FOKUS (as subcontractor) receives funding for the standardization of the proposal “Benchmarking quantum computers with standardized KPIs”, including the associated support of the entire process by DIN and DKE. Thus, QBN, the world’s leading, global business network for quantum technologies will develop a DIN SPEC together with Fraunhofer FOKUS and a consortium of quantum computing manufacturers, platform and software providers and industry users. The core metrics are to be defined in a way that they describe the properties of a QPU with precise benchmarks and are decisive for the performance in various relevant applications. These applications then no longer have to be tested separately, but can be assessed on the basis of the KPIs, which manufacturers and users can measure in a fair and reproducible manner. The DIN SPEC will then serve as a basis for European and international standard on KPIs to benchmark quantum computers. This document outlines a common framework for quantum computing benchmarking, reflecting the complexity and diversity of the field. However, ongoing research and development in both quantum computing and benchmarking necessitate continuous refinement of these KPIs. QBN, Fraunhofer FOKUS, and consortium partners will collaborate with DIN and other stakeholders to update this document with additional application-specific benchmarks, frameworks, and core metrics. This pre-standard offers: A framework for low-level and high-level benchmarking using algorithmic building blocks. A structured approach to benchmarking at different levels. Reference points and interfaces for benchmarking specific systems. A defined set of metrics and KPIs. Transparent descriptions of metrics, considering factors like reproducibility. Download DIN SPEC 91480 (english version) If you have any questions, please contact us.

10/10/2024– The QLASS project, focused on advancing Quantum Photonic Integrated Circuits (QPICs), has secured €6 million in funding from the European Commission. The initiative is led by a consortium led by Politecnico di Milano, with partners including Fondazione Politecnico di Milano, Pixel Photonics, Quantum Lab in Sapienza Università di Roma, Ephos, CNRS-Institut Charles Gerhardt Montpellier, Université de Montpellier, Schott AG, and Unitary Fund France. QPICs are specialized devices that leverage the properties of light and quantum mechanics to execute complex tasks in fields such as quantum computing, communication, and sensing. By integrating multiple photonic components, such as waveguides, beam splitters and detectors, into a single chip, QPICs offer a scalable solution for manipulating quantum states of light with high precision. These circuits hold the potential to significantly reduce the size, cost, and complexity of quantum systems, paving the way for real-world applications. However, the development of QPICs is currently limited by challenges such as photon loss, scalability issues, fabrication complexity, and imperfect photon sources. The QLASS project tackles these challenges heads on. To address the limitations of current QPIC technology, QLASS will employ femtosecond laser writing to fabricate 3D waveguides within glass specifically developed for optimal photonic performance, significantly reducing losses. Additionally, the project will incorporate high-performance single-photon sources, superconducting nanowire single-photon detectors (SNSPDs), and advanced electronics capable of programming the whole system. Lastly, the team will develop software to compile quantum programs onto the special QPIC processors. A principal use case of the QLASS project is modeling complex systems and materials. In particular, QLASS will pave the way to the design of new materials and technologies for lithium-ion batteries, aiming to improve their capacity, efficiency and cyclability which are crucial in meeting the European Union’s technological and sustainability goals. QLASS will bring significant advancements to the development of QPIC technology and also contribute to progress in glass development and novel SNSPD processes. These breakthroughs are expected to benefit the broader quantum technology community and enable new quantum devices with performance levels far beyond the current platforms. “The QLASS project holds the potential for establishing a new path in quantum computing research”, said Dr. Giulia Acconcia from Politecnico di Milano, the QLASS Coordinator. “Byexploiting various technologies, each one specifically developed to optimize one aspect of quantum processing, and yet pursuing a high level of integration, QLASS will show a viable approach to achieving extremely high performance in a compact scalable circuit.” “QLASS’ synergy between platform and algorithms development”– added Acconcia– “can affect both the research and the market in many application areas, such as quantum information and metrology”. The QLASS partners are: Politecnico di Milano| Italy Fondazione Politecnico di Milano | Italy Pixel Photonics | Germany Quantum Lab- Sapienza Università di Roma | Italy Ephos | Italy CNRS-Institut Charles Gerhardt Montpellier | France Université de Montpellier | France Schott AG | Germany Unitary Fund France | France More information at https://https://www.qlass-project.eu/ QLASS Coordinator Giulia Acconcia– giulia.acconcia@polimi.it

Innsbruck, 16.10.2024. The teams at ParityQC and the University of Innsbruck discovered the most efficient implementation of the Quantum Fourier Transform – one of the most fundamental algorithms in quantum computing – on a linear chain. In the paper “SWAP-less implementation of Quantum Algorithms” they present the novel implementation, which eliminates the need for SWAP or Shuttling operations. The Quantum Fourier Transform, or abbreviated QFT, is a cornerstone algorithm in quantum computing. It is the basis of several seminal algorithms ranging from Shor’s algorithm, which is one of the grand goals of error-corrected quantum computing, to quantum optimization. Over the past century, various improvements to the QFT implementation have been suggested, in order to reduce the number of required gates and optimize runtime. This is particularly relevant for quantum systems with limited connectivity, such as a linear chain of qubits. A significant challenge arises from the fact that QFT requires gates to operate between every pair of qubits. On a linear chain, this is not feasible directly, requiring either the movement of quantum information (SWAP operations) or the physical movement of qubits (Shuttling operations). The ParityQC Architecture eliminates the need for SWAP or Shuttling operations. The teams at ParityQC and the University of Innsbruck have now demonstrated that with the elimination of this overhead it is possible to achieve the most efficient implementation of QFT. In the paper “SWAP-less Implementation of Quantum Algorithms”, the authors (Berend Klaver, Stefan Rombouts, Michael Fellner, Anette Messinger, Kilian Ender, Katharina Ludwig, Wolfgang Lechner) present a new formalism based on tracking the flow of parity quantum information, which is the basis of the implementation. Instead of using SWAP or Shuttling, the method leverages the fact that entangling gates not only manipulate quantum states but can also be exploited to transport quantum information. This method improves upon all current state-of-the-art implementations of the Quantum Fourier Transform (QFT) on a linear nearest-neighbor architecture, achieving a total circuit depth of 5n−3 and requiring n^2−1 CNOT gates. These two metrics—circuit depth and gate count—are critical for practical implementation. Circuit depth directly impacts the algorithm’s runtime, while minimizing the number of gates is essential since each gate introduces potential errors into the quantum system. Publication: Berend Klaver, Stefan Rombouts, Michael Fellner, Anette Messinger, Kilian Ender, Katharina Ludwig, Wolfgang Lechner. SWAP-less Implementation of Quantum Algorithms. arXiv:2408.10907v1 (2024)