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Probing and Engineering the Environment of Near-Surface Nitrogen-Vacancy Centers in Diamond for Quantum Sensing and Simulation
Probing and Engineering the Environment of Near-Surface Nitrogen-Vacancy Centers in Diamond for Quantum Sensing and Simulation
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211151032
- ISBN
- 9798382346229
- DDC
- 530
- 저자명
- Zhang, Zhiran.
- 서명/저자
- Probing and Engineering the Environment of Near-Surface Nitrogen-Vacancy Centers in Diamond for Quantum Sensing and Simulation
- 발행사항
- [Sl] : University of California, Santa Barbara, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 174 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 85-11, Section: B.
- 주기사항
- Advisor: Bleszynski Jayich, Ania C.
- 학위논문주기
- Thesis (Ph.D.)--University of California, Santa Barbara, 2024.
- 초록/해제
- 요약Nitrogen-vacancy(NV) centers in diamonds are a prominent example of solid-state spin qubits for applications in quantum information. However, the assembly of solid-state spins, including NVs or auxiliary spins near the diamond surface, with a controlled nanoscale spatial precision remains an outstanding challenge. Consequently, the pathway towards scaling up both quantum simulation and entanglement-enhanced sensing using NVs remains unclear. Furthermore, near-surface NVs tend to exhibit degraded properties, including spin coherence and charge state stability. Firstly, we will discuss the charge state instabilities of shallow NVs. We discover that the charge state stability depends on the local discrete environment, and our observation is consistent with a model of a single electron trap near the NV center. We also discuss protocols that can be used to alleviate the charge state effect on NV measurement. Secondly, we will discuss the utilization of entanglement with auxiliary reporter spins to improve the sensitivity of T1 relaxometry. Thirdly, we will discuss two methods to engineer two-dimensional NV ensembles and the decoherence dynamics due to the many-body noise in such strongly interacting dipolar spin systems. Lastly, we will present our recent progress, where we combine a DNA-based patterning technique with nitrogen-vacancy (NV) quantum sensors in diamond to sense two-dimensional arrays of molecular spins programmably patterned via a monolayer of DNA origami on a diamond surface. We control the spacing of chelated Gd3+ spins down to 6 nm precision and verify this control by observing a linear relationship between proximal NVs' T1 relaxation rate and the designated number of Gd3+ spins per origami unit. We confirm the preservation of the charge state and spin coherence of the proximal, shallow NV centers and discuss ongoing work towards probing ordered, strongly interacting two-dimensional spin networks on the diamond surface.
- 일반주제명
- Physics
- 일반주제명
- Applied physics
- 일반주제명
- Quantum physics
- 일반주제명
- Nanotechnology
- 키워드
- Nitrogen-vacancy
- 키워드
- Nanoscale
- 키워드
- Auxiliary spins
- 기타저자
- University of California, Santa Barbara Physics
- 기본자료저록
- Dissertations Abstracts International. 85-11B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520250211151032
■006m o d
■007cr#unu||||||||
■020 ▼a9798382346229
■035 ▼a(MiAaPQ)AAI30997395
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a530
■1001 ▼aZhang, Zhiran.
■24510▼aProbing and Engineering the Environment of Near-Surface Nitrogen-Vacancy Centers in Diamond for Quantum Sensing and Simulation
■260 ▼a[Sl]▼bUniversity of California, Santa Barbara▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a174 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 85-11, Section: B.
■500 ▼aAdvisor: Bleszynski Jayich, Ania C.
■5021 ▼aThesis (Ph.D.)--University of California, Santa Barbara, 2024.
■520 ▼aNitrogen-vacancy(NV) centers in diamonds are a prominent example of solid-state spin qubits for applications in quantum information. However, the assembly of solid-state spins, including NVs or auxiliary spins near the diamond surface, with a controlled nanoscale spatial precision remains an outstanding challenge. Consequently, the pathway towards scaling up both quantum simulation and entanglement-enhanced sensing using NVs remains unclear. Furthermore, near-surface NVs tend to exhibit degraded properties, including spin coherence and charge state stability. Firstly, we will discuss the charge state instabilities of shallow NVs. We discover that the charge state stability depends on the local discrete environment, and our observation is consistent with a model of a single electron trap near the NV center. We also discuss protocols that can be used to alleviate the charge state effect on NV measurement. Secondly, we will discuss the utilization of entanglement with auxiliary reporter spins to improve the sensitivity of T1 relaxometry. Thirdly, we will discuss two methods to engineer two-dimensional NV ensembles and the decoherence dynamics due to the many-body noise in such strongly interacting dipolar spin systems. Lastly, we will present our recent progress, where we combine a DNA-based patterning technique with nitrogen-vacancy (NV) quantum sensors in diamond to sense two-dimensional arrays of molecular spins programmably patterned via a monolayer of DNA origami on a diamond surface. We control the spacing of chelated Gd3+ spins down to 6 nm precision and verify this control by observing a linear relationship between proximal NVs' T1 relaxation rate and the designated number of Gd3+ spins per origami unit. We confirm the preservation of the charge state and spin coherence of the proximal, shallow NV centers and discuss ongoing work towards probing ordered, strongly interacting two-dimensional spin networks on the diamond surface.
■590 ▼aSchool code: 0035.
■650 4▼aPhysics
■650 4▼aApplied physics
■650 4▼aQuantum physics
■650 4▼aNanotechnology
■653 ▼aNitrogen-vacancy
■653 ▼aNanoscale
■653 ▼aAuxiliary spins
■653 ▼aQuantum information
■690 ▼a0605
■690 ▼a0599
■690 ▼a0652
■690 ▼a0215
■71020▼aUniversity of California, Santa Barbara▼bPhysics.
■7730 ▼tDissertations Abstracts International▼g85-11B.
■790 ▼a0035
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17160514▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
