The research team demonstrated the world's first topological qubit. They managed to integrate
Quantum computers are considered computersfuture. Using quantum effects, they will solve very complex problems facing humanity, those problems that ordinary computers cannot solve in a realistic time frame. Modern quantum computers usually contain only a small number of qubits. The main problem is that they are very error prone. The larger the system, the more difficult it is to completely isolate it from the environment.
Therefore, great hopes are placed on a new typequantum bit is a topological qubit. This approach is used by several research groups as well as companies such as Microsoft. A feature of this type of qubit is that it is topologically protected. The special geometric structure of superconductors, as well as the properties of the electronic material, ensure the preservation of quantum information. Therefore, topological qubits are considered to be particularly robust and largely immune to external sources of decoherence. They also provide fast switching times, comparable to those achieved with conventional superconducting qubits used by Google and IBM in today's quantum processors.
However, it is not yet clear whether people will ever be able tocreate topological qubits. This is due to the fact that there is still no suitable material base for the experimental production of special quasiparticles that are undoubtedly necessary for this. These quasiparticles are also known as Majorana states. Until now, they could only be unambiguously demonstrated in theory, but not in experiments. Hybrid qubits, first created by a research group led by Dr. Peter Schüffelgen from the Peter Grünberg Institute (PGI-9) at the Jülich Research Center, now open up new possibilities in this field. They already contain topological materials at critical points.
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