Research On Superconducting Electronic-spintronic Hybrid Quantum Computing Devices

Classical computers operate on the basis of switching bits between 0 and 1states,while elementary particles at the microscopic scale follow the principles of quantum mechanics and can form qubits in any superposition between 0 and 1 states at the same time.The quantum computers based on the special properties of Qubit have exponentially faster computing power than the classical computers in solving specific problems.In the past 20 years,researchers have realized the controllable preparation,manipulation and reading of quantum states in different physical systems,laying a foundation for the physical realization of quantum computing.Among them,superconducting quantum system with excellent scalability and flexibility advantages,the first to verify the quantum superiority,has become one of the most promising quantum computing system.The realization of quantum superiority on superconducting quantum chip is an experimental demonstration that quantum computing is superior to classical computing in solving specific problems.However,there are still some performance indicators to be improved in the realization of fault-tolerant quantum computing,such as Qubit coherence time and fidelity of Qubit gate operation.In this paper,through the design and research of superconducting electricity-spintronics hybrid quantum devices,the local magnetic field generated by spintronic devices can dynamically regulate the Qubit frequency and improve the potential of Qubit performance,and demonstrate that the field programmable topological state array can be constructed based on the spintronic device array,which is of great significance to perform topological braiding operations and explore rich topological phase transition processes.The main achievements of this paper are as follows:1.Spintronic device,magnetic tunneling junction array,and superconducting electron device,superconducting quantum interferometer,were prepared by micro-nano machining technology,which verified the potential of using STT effect to dynamically regulate the magnetic tunneling junction array to generate local magnetic field,and demonstrated the feasibility of driving superconducting qubit through spintronic devices.2.The concept of Field-Programmable Topological Array is proposed to provide a platform for topological quantum computing.Spintronic devices,we will be combined with a superconductor-semiconductor heterogeneous nanowires design heterogeneous topological quantum computing devices,using the STT effect of spin electronics provide specific timing and distribution of local magnetic field configuration.FPTA can reduce the stringent requirements of the topological quantum computing operation and provide a physical platform for performing the topological braiding operation,realizing the topological transformation process structures.