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Towards a Programmable Nanomechanical Interface for Mediating Spin-Spin Interactions
Towards a Programmable Nanomechanical Interface for Mediating Spin-Spin Interactions
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202103146
- ISBN
- 9798280710146
- DDC
- 530
- 서명/저자
- Towards a Programmable Nanomechanical Interface for Mediating Spin-Spin Interactions
- 발행사항
- [Sl] : Harvard University, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 210 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-12, Section: B.
- 주기사항
- Advisor: Lukin, Mikhail.
- 학위논문주기
- Thesis (Ph.D.)--Harvard University, 2025.
- 초록/해제
- 요약Solid state spin qubits are promising candidates for quantum information processing. In particular, the nitrogen vacancy (NV) center in diamond is known to have coherence times exceeding milliseconds even at room temperature. However, due to the limits of qubit fabrication and the short-range nature of magnetic dipolar interactions, it remains difficult to generate programmable interactions between a large number of NV centers. To address this challenge, it has been proposed to use nanomechanical resonators as a mesoscopic interface between solid state spin qubits. In this thesis, I will describe experimental efforts in building a scanning probe platform, where individual NV centers in diamond nanopillars are coupled to magnetially functionalized silicon nitride mechanical resonators. The scanning probe configuration enables programmable connectivity via mechanical transport of the nanopillars. Proof-of-principle measurements show that the coherence of the NV center is preserved despite relative movement in a magnetic field gradient, by utilizing the nitrogen nuclear spin as a quantum memory. I will also describe measurements of the spin-mechanical coupling via both DC and AC magnetometry. Finally, I present some preliminary results related to sensing of a single NV center with the mechanical resonator, which demonstrate the high level of control over each subsystem. With realistic improvements to several system parameters, high spin-mechanical cooperativities are feasible, offering a new avenue towards scalable quantum information processing with spin qubits.
- 일반주제명
- Physics
- 일반주제명
- Quantum physics
- 일반주제명
- Nanoscience
- 키워드
- Nitrogen vacancy
- 키워드
- Nanopillars
- 기타저자
- Harvard University Physics
- 기본자료저록
- Dissertations Abstracts International. 86-12B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520260202103146
■006m o d
■007cr#unu||||||||
■020 ▼a9798280710146
■035 ▼a(MiAaPQ)AAI31995350
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a530
■1001 ▼aFung, Long Fung Frankie.▼0(orcid)0009-0007-1417-6591
■24510▼aTowards a Programmable Nanomechanical Interface for Mediating Spin-Spin Interactions
■260 ▼a[Sl]▼bHarvard University▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a210 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-12, Section: B.
■500 ▼aAdvisor: Lukin, Mikhail.
■5021 ▼aThesis (Ph.D.)--Harvard University, 2025.
■520 ▼aSolid state spin qubits are promising candidates for quantum information processing. In particular, the nitrogen vacancy (NV) center in diamond is known to have coherence times exceeding milliseconds even at room temperature. However, due to the limits of qubit fabrication and the short-range nature of magnetic dipolar interactions, it remains difficult to generate programmable interactions between a large number of NV centers. To address this challenge, it has been proposed to use nanomechanical resonators as a mesoscopic interface between solid state spin qubits. In this thesis, I will describe experimental efforts in building a scanning probe platform, where individual NV centers in diamond nanopillars are coupled to magnetially functionalized silicon nitride mechanical resonators. The scanning probe configuration enables programmable connectivity via mechanical transport of the nanopillars. Proof-of-principle measurements show that the coherence of the NV center is preserved despite relative movement in a magnetic field gradient, by utilizing the nitrogen nuclear spin as a quantum memory. I will also describe measurements of the spin-mechanical coupling via both DC and AC magnetometry. Finally, I present some preliminary results related to sensing of a single NV center with the mechanical resonator, which demonstrate the high level of control over each subsystem. With realistic improvements to several system parameters, high spin-mechanical cooperativities are feasible, offering a new avenue towards scalable quantum information processing with spin qubits.
■590 ▼aSchool code: 0084.
■650 4▼aPhysics
■650 4▼aQuantum physics
■650 4▼aNanoscience
■653 ▼aNitrogen vacancy
■653 ▼aQuantum information
■653 ▼aNanopillars
■653 ▼aNanomechanical resonators
■690 ▼a0605
■690 ▼a0565
■690 ▼a0599
■71020▼aHarvard University▼bPhysics.
■7730 ▼tDissertations Abstracts International▼g86-12B.
■790 ▼a0084
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17357193▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
