ИСТИНА

During the last two decades one have seen a real competition between different technological platforms capable to be quantum bits, quantum registers and quantum computing devices. These different qubit platforms have been used to demonstrate quantum operations with the goal of building a quantum processor prototype that is superior in its computing capabilities to existing classical analogues. The best physical implementations and the most suitable materials for multi-million qubit device realization is the major question. Semiconductor materials and quantum semiconductor computing devices are at the forefront on the way to answer this question. The current industrial well-developed silicon technology is considered to be one of the best to create quantum VLSI. Therefore, silicon solid-state qubits are among the most promising candidates for creating quantum computing systems. Explosive growth in the number of scientific publications on silicon qubits in 2018-2024, as well as the huge investments of IT giants such as Intel and Microsoft in their development, confirm the growing research relevance in this field. It is also important to note that silicon is the most promising material for constructing solid-state semiconductor qubits, since it can be chemically and isotopically purified to an extremely high degree, which leads to an increase in coherence time by eliminating nuclear spins noise of the 29 Si isotope. Besides, its crystal lattice has high symmetry and has an inversion center, which deactivates some decoherence channels, for example, those associated with the piezoelectric effect. From the point of view of solid-state qubits industrial implementation the main technological direction is the use of gate-based and gate-controlled induced quantum dot qubits in silicon. We present the research project to create semiconductor spin-hole qubits based in silicon. We expect our project will be a part of the Russian Quantum Computing Roadmap, which is part of the global Quantum Technology Roadmap. The project is focused on the creation and study of silicon-based quantum nanodevices with charge and spin degrees of freedom, in which quantum coherent effects are realized. As a result of the project, a 8 qubit silicon register will be created and high fidelity two qubits operations will be demonstrated on this register. This project will have a decisive influence on the development of semiconductor quantum technologies in Russia and will lead to the creation of a new generation of solid-state devices that use the quantum properties of large systems.