Error Mitigation and Detection in Circuit Quantum Electrodynamics Powered by QND Measurements
Error Mitigation and Detection in Circuit Quantum Electrodynamics Powered by QND Measurements
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211151025
- ISBN
- 9798383565469
- DDC
- 530.1
- 서명/저자
- Error Mitigation and Detection in Circuit Quantum Electrodynamics Powered by QND Measurements
- 발행사항
- [Sl] : Yale University, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 238 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-02, Section: B.
- 주기사항
- Advisor: Schoelkopf, Robert J.
- 학위논문주기
- Thesis (Ph.D.)--Yale University, 2024.
- 초록/해제
- 요약Superconducting cavities coupled to transmon ancillae are a promising platform for fault-tolerant quantum computation. This pairing produces universal control over a long-lived bosonic mode, in whose many levels we encode a logical qubit or physical quantum system, such as the vibrational modes of a molecule. However, unwanted static interactions and spurious couplings to the environment limit the accuracy of computations. In this dissertation, we tackle each of these error sources in turn. Our solutions exploit the ability of the transmon to perform high-fidelity measurements of the cavity mode without disturbing its stored information. First, we present our efforts to reduce the residual cavity non-linearity, which causes dephasing in many quantum codes. We discuss multiple methods to measure the non-linearity and show that our mitigation technique can fully cancel cavity self-Kerr. Next, we construct a new photon-number resolving measurement that extracts multiple bits of information from the cavity in a single shot using multiple transmon measurements. The errors that occur in this measurement have a predictable form and can be inverted to reduce ensemble error by an order of magnitude. Finally, we develop and demonstrate a gate that detects errors in real time. The resources required for fault-tolerance are high, but can be relaxed if the goal is only to detect, but not correct errors. Our error-detected gate reaches a fidelity of 0.9995 driven by improvements in numerical gate optimization and transmon three level control.
- 일반주제명
- Quantum physics
- 키워드
- Error detection
- 기타저자
- Yale University Physics
- 기본자료저록
- Dissertations Abstracts International. 86-02B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■020 ▼a9798383565469
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■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a530.1
■1001 ▼aCurtis, Jacob Charles.
■24510▼aError Mitigation and Detection in Circuit Quantum Electrodynamics Powered by QND Measurements
■260 ▼a[Sl]▼bYale University▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a238 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-02, Section: B.
■500 ▼aAdvisor: Schoelkopf, Robert J.
■5021 ▼aThesis (Ph.D.)--Yale University, 2024.
■520 ▼aSuperconducting cavities coupled to transmon ancillae are a promising platform for fault-tolerant quantum computation. This pairing produces universal control over a long-lived bosonic mode, in whose many levels we encode a logical qubit or physical quantum system, such as the vibrational modes of a molecule. However, unwanted static interactions and spurious couplings to the environment limit the accuracy of computations. In this dissertation, we tackle each of these error sources in turn. Our solutions exploit the ability of the transmon to perform high-fidelity measurements of the cavity mode without disturbing its stored information. First, we present our efforts to reduce the residual cavity non-linearity, which causes dephasing in many quantum codes. We discuss multiple methods to measure the non-linearity and show that our mitigation technique can fully cancel cavity self-Kerr. Next, we construct a new photon-number resolving measurement that extracts multiple bits of information from the cavity in a single shot using multiple transmon measurements. The errors that occur in this measurement have a predictable form and can be inverted to reduce ensemble error by an order of magnitude. Finally, we develop and demonstrate a gate that detects errors in real time. The resources required for fault-tolerance are high, but can be relaxed if the goal is only to detect, but not correct errors. Our error-detected gate reaches a fidelity of 0.9995 driven by improvements in numerical gate optimization and transmon three level control.
■590 ▼aSchool code: 0265.
■650 4▼aQuantum physics
■653 ▼aError detection
■653 ▼aQuantum computing
■653 ▼aQuantum measurement
■653 ▼aQuantum simulation
■690 ▼a0599
■71020▼aYale University▼bPhysics.
■7730 ▼tDissertations Abstracts International▼g86-02B.
■790 ▼a0265
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17160472▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
