Measurement-based fault-tolerant architecture for quibbler code
By employing quantum error correction technology based on "four-legged cat code," and utilizing the dispersion coupling and measurement interaction between auxiliary qubits and logical qubits, fault-tolerant operations on boson systems in quantum information processing systems are achieved. This solves the problems of quantum state decoherence and auxiliary qubit errors, thereby improving the robustness of quantum computing.
Patent Information
- Application Number
- CN202280089391.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2021-12-22
- Filing Date
- 2022-12-22
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2042-12-22
AI Technical Summary
In existing quantum information processing systems, the quantum states of boson systems are susceptible to decoherence and other noise, leading to information loss. Furthermore, traditional error correction methods cannot effectively correct errors introduced by auxiliary qubits.
The quantum error correction technology using four-legged cat code achieves non-destructive and fault-tolerant measurement of Z, ZZ, and ZZZ logical operators by using dispersion-coupled auxiliary qubits and logic qubits and the interaction of measurement and beam splitters. Combined with cavity displacement operations, it performs parity operations and error correction, including fault-tolerant SNAP gates and teleportation schemes.
It effectively corrects errors in the boson system, improves the stability of quantum states and the reliability of information storage, realizes fault-tolerant operations for quantum computing, and enhances the robustness of quantum computing.