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Corley-Wiciak, C. (author), Richter, C. (author), Zoellner, M.H. (author), Zaitsev, I. (author), Manganelli, C.L. (author), Zatterin, E. (author), Schülli, T.U. (author), Corley-Wiciak, A.A. (author), Katzer, J. (author), Reichmann, F. (author), Klesse, W.M. (author), Hendrickx, N.W. (author), Sammak, A. (author), Veldhorst, M. (author), Scappucci, G. (author), Virgilio, M. (author), Capellini, G. (author)A strained Ge quantum well, grown on a SiGe/Si virtual substrate and hosting two electrostatically defined hole spin qubits, is nondestructively investigated by synchrotron-based scanning X-ray diffraction microscopy to determine all its Bravais lattice parameters. This allows rendering the three-dimensional spatial dependence of the six strain...article 2023
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Neumann, N.M.P. (author), de Heer, P.B.U.L. (author), Phillipson, F. (author)In this paper, we present implementations of an annealing-based and a gate-based quantum computing approach for finding the optimal policy to traverse a grid and compare them to a classical deep reinforcement learning approach.We extended these three approaches by allowing for stochastic actions instead of deterministic actions and by...article 2023
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Dukalski, M. (author), Rovetta, D. (author), van der Linde, S.G. (author), Möller, M. (author), Neumann, N. (author), Phillipson, F. (author)Much of recent progress in geophysics can be attributed to the adaptation of heterogeneous high-performance computing architectures. It is projected that the next major leap in many areas of science, and hence hopefully in geophysics too, will be due to the emergence of quantum computers. Finding a right combination of hardware, algorithms, and...article 2023
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Verberk, R. (author), Michalak, D.J. (author), Versluis, R. (author), Polinder, H. (author), Samkharadze, N. (author), Amitonov, S.V. (author), Sammak, S. (author), Tryputen, L. (author), Brousse, D. (author), Hanfoug, R. (author)As part of the National Agenda for Quantum Technology, QuTech (TU Delft and TNO) has agreed to make quantum technology accessible to society and industry via its full-stack prototype: Quantum Inspire. This system includes two different types of programmable quantum chips: circuits made from superconducting materials (transmons), and circuits...report 2023
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Bontekoe, T. (author), Phillipson, F. (author), van der Schoot, W.E. (author)One of the first fields where quantum computing will likely show its use is optimisation. Many optimisation problems naturally arise in a quadratic manner, such as the quadratic knapsack problem. The current state of quantum computers requires these problems to be formulated as a quadratic unconstrained binary optimisation problem, or QUBO....conference paper 2023
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Phillipson, F. (author), Neumann, N. (author), Wezeman, R. (author)As quantum computers mature, the applicability in practice becomes more important. Quantum computers will often be used in a hybrid setting, where classical computers still play an important role in operating and using the quantum computer. However. the term hybrid is diffuse and multi-interpretable. In this work we define two classes of hybrid...conference paper 2023
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Phillipson, F. (author)Quantum computing, an emerging paradigm based on the principles of quantum mechan ics, has the potential to revolutionise various industries, including Telecommunications. This paper explores the transformative impact of quantum computing on the telecommunication market, focus ing on its applications in solving computationally intensive problems...article 2023
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Ripper, P. (author), Castro do Amaral, G. (author), Temporão, G. (author)Unreliable quantum processes stemming from noisy operations and interactions with the environment represent one of the greatest challenges to be overcome in the development of scalable, fault-tolerant universal quantum computers. Generic characterizations of such quantum processes, however, can be very resource-intensive, and many tools have...article 2023
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Neumann, N.M.P. (author), van der Schoot, W.E. (author), Sijpesteijn, T.J. (author)Quantum computing is a rapidly progressing field: quantum computers are becoming more powerful and an increasing number of functionalities are offered via various quantum platforms and quantum software packages. Current quantum computers can be used almost exclusively via cloud services. It is expected that this will remain the case, at least in...conference paper 2023
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van der Linde, S.G. (author), van der Schoot, W.E. (author), Phillipson, F. (author)With the transition to sustainable energy sources and devices, the demand for and supply of energy increases ever more. With energy grids struggling to keep up with this increase, we need to ensure that supply and demand are correctly matched. The Tactical Capacity Problem tackles this issue by choosing the optimal location of sustainable power...conference paper 2023
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Colucci, G. (author), van der Linde, S. (author), Phillipson, F. (author)Optimization of electricity surplus is a crucial element for transmission power networks since it leads to reducing costs as well as increasing efficiency across the network as a whole. In this paper, we show how to optimize such network costs using a quantum annealing approach. First, we define the Quadratic Unconstrained Binary Optimization ...article 2023
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van Deventer, M.O. (author), Spethmann, N. (author), Loeffler, M. (author), Amoretti, M. (author), van den Brink, R. (author), Bruno, N. (author), Comi, P. (author), Farrugia, N. (author), Gramegna, M. (author), Jenet, A. (author), Kassenberg, B. (author), Kozlowski, W. (author), Länger, T. (author), Lindstrom, T. (author), Martin, V. (author), Neumann, N.M.P. (author), Papadopoulos, H. (author), Pascazio, S. (author), Peev, M. (author), Pitwon, R. (author), Adriaan Rol, M. (author), Traina, P. (author), Venderbosch, P. (author), Wilhelm-Mauch, F.K. (author)The Second Quantum Revolution facilitates the engineering of new classes of sensors, communication technologies, and computers with unprecedented capabilities. Supply chains for quantum technologies are emerging, some focused on commercially available components for enabling technologies and/or quantum-technologies research infrastructures,...article 2022
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Verberk, R. (author), Michalak, D.J. (author), Versluis, R. (author), Polinder, H. (author), Samkharadze, N. (author), Amitonov, S.V. (author), Sammak, S. (author), Tryputen, L. (author), Brousse, D. (author), Hanfoug, R. (author)As part of the National Agenda for Quantum Technology, QuTech (TU Delft and TNO) has agreed to make quantum technology accessible to society and industry via its full-stack prototype: Quantum Inspire. This system includes two different types of programmable quantum chips: circuits made from superconducting materials (transmons), and circuits...conference paper 2022
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Werkhoven, P. (author), Bouwman, J. (author), van Diggelen, J. (author), Dijk, J. (author), van der Meulen, M. (author), Neerincx, M. (author), Raaijmakers, S. (author), van Veenstra, A.F. (author)TNO has lived up to its motto ‘Innovation for life’ by playing a significant part in this digital revolution, with major breakthroughs in computer simulation, network transactions, wireless communication, cyber security, optical satellite communication and quantum computing.report 2022
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van der Schoot, W.E. (author), Leermakers, D. (author), Wezeman, R.S. (author), Neumann, N.M.P. (author), Phillipson, F. (author)We report the Atos Q-score for D-Wave’s quantum devices, classical algorithms and hybrid quantum-classical solver. Computing the Q-score entails solving the Max-Cut problem for increasingly large graphs. This work presents the first computation of the Q-score on a quantum device and shows how these quantum devices compare to classical devices at...conference paper 2022
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Phillipson, F. (author), Chiscop, I. (author)Matching electricity demand and supply by decentralised generators will be very important in the near future, where more and more electricity has to be produced sustainably. Optimisation problems that address this problem often have quadratic objective functions or constraints, due to the quadratic nature of energy loss. Where classical solvers...conference paper 2022
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Bontekoe, T.H. (author), Neumann, N.M.P. (author), Phillipson, F. (author), Wezeman, R.S. (author)Radar and sonar information processing is a promising application area of quantum computing in the near future. Many use cases in this area can are computational heavy and might benefit greatly from a quantum approach. In this paper, an overview of use cases in this application area is given and scored on quantum readiness, added value and...conference paper 2022
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Neumann, N.M.P. (author), Wezeman, R.S. (author)Quantum computers can solve specific complex tasks for which no reasonable-time classical algorithm is known. Quantum computers do however also offer inherent security of data, as measurements destroy quantum states. Using shared entangled states, multiple parties can collaborate and securely compute quantum algorithms. In this paper we propose...conference paper 2022
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Wezeman, R.S. (author), Chiscop, I. (author), Anitori, L. (author), van Rossum, W.L. (author)Compressive sensing is a signal processing technique used to acquire and reconstruct sparse signals using significantly fewer measurement samples. Compressive sensing requires finding the most sparse solution to an underdetermined linear system, which is an NP-hard problem and as a consequence in practise is only solved approximately. In our...conference paper 2022
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Phillipson, F. (author), Chiscop, I. (author)Quantum computing is developing fast. Real world applications are within reach in the coming years. One of the most promising areas is combinatorial optimisation, where the Quadratic Unconstrained Binary Optimisation (QUBO) problem formulation is used to get good approximate solutions. Both the universal quantum computer as well as the quantum...conference paper 2021