Microsoft's major technological breakthrough in quantum computing! Successfully developed 4D topological quantum error correction code

　　Recently, according to media reports, Microsoft CEO Satya Nadella recently announced the company's major breakthrough in the field of quantum computing - the successful development of 4D topological quantum error correction codes.

Compared with 2D, 4D topological quantum error correction codes are excellent in encoding efficiency, error correction capabilities, and logical operations. Each logical qubit only requires very few physical qubits, which can check for errors at one time and reduce the error rate by 1,000 times.

At the same time, this new quantum computing achievement will be applied to Microsoft's Azure Quantum quantum computing platform to accelerate the research and development efficiency of scientific research and medical care.

　　The new 4D topological quantum error correction code developed by Microsoft is suitable for qubits with fully connected characteristics such as neutral atoms, ion traps and photonics. It can reduce the error rate of physical qubits by orders of magnitude to meet the requirements of reliable operation of quantum circuits.

　　By optimizing encoding in 4D space, the number of physical qubits required to construct each logical qubit is reduced by 5 times. When achieving equal error correction capabilities and logical operations, the total amount of physical qubits is also significantly lower than that of traditional solutions.

In addition, from the perspective of resource requirements, the number of physical qubits required by 4D topological quantum error correction codes has significantly reduced when achieving the same error correction capabilities and logical operation functions. This is a huge advantage for current and recent quantum hardware, as the current quantum hardware platform still has limitations in the quantity and quality of physical qubits.

　　By reducing the demand for physical qubits, 4D topological quantum error correction code can not only reduce the hardware cost of quantum computing systems, but also improve the reliability and stability of the system. In addition, the 4D topological quantum error correction code requires relatively few auxiliary resources when implementing logical operations, which further reduces the resource overhead of quantum computing and makes quantum computing more feasible in practical applications.