상세정보
학술지
Analysis of Physical Requirements for Simple Three-qubit and Nine-qubit Quantum Error Correction on Quantum-dot and Superconductor Qubits
- 발행일
- 201701
- 출처
- Physical Review A : Covering Atomic, Molecular, and Optical Physics and Quantum Information, v.95 no.1, pp.1-7
- ISSN
- 2469-9926
- 출판사
- American Physical Society (APS)
- 협약과제
- 16ZH1100, 양자컴퓨팅 플랫폼 및 비용효율성 향상에 대한 연구개발, 최병수
- 초록
- The implementation of a scalable quantum computer requires quantum error correction (QEC). An important step toward this goal is to demonstrate the effectiveness of QEC where the fidelity of an encoded qubit is higher than that of the physical qubits. Therefore, it is important to know the conditions under which QEC code is effective. In this study, we analyze the simple three-qubit and nine-qubit QEC codes for quantum-dot and superconductor qubit implementations. First, we carefully analyze QEC codes and find the specific range of memory time to show the effectiveness of QEC and the best QEC cycle time. Second, we run a detailed error simulation of the chosen error-correction codes in the amplitude damping channel and confirm that the simulation data agreed well with the theoretically predicted accuracy and minimum QEC cycle time. We also realize that since the swap gate worked rapidly on the quantum-dot qubit, it did not affect the performance in terms of the spatial layout.
- KSP 제안 키워드
- Cycle Time, Error Correction Codes, Error simulation, Quantum Dot(QD), Quantum Error Correction, SWAP gate, Simulation data, amplitude damping channel, quantum computer, spatial layout