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Two Approaches for Nuclear Spin Co-Magnetometry
Two Approaches for Nuclear Spin Co-Magnetometry
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211151328
- ISBN
- 9798382809526
- DDC
- 530
- 저자명
- Wang, Jingyao.
- 서명/저자
- Two Approaches for Nuclear Spin Co-Magnetometry
- 발행사항
- [Sl] : Princeton University, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 289 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 85-12, Section: B.
- 주기사항
- Advisor: Romalis, Michael V.
- 학위논문주기
- Thesis (Ph.D.)--Princeton University, 2024.
- 초록/해제
- 요약Nuclear spin comagnetometers are precision probes well-suited for tests of fundamental physics and inertial rotation sensing, thanks to their inherent suppression of magnetic field noise. This thesis discusses developments in two approaches commonly employed for nuclear spin comagnetometry. The first approach is termed quantization-axis comparison, where the ensemble-averaged spin orientation of alkali-metal electron spins and noble-gas nuclear spins are compared to determine if any anomalous fields that couple to the spins differently from magnetic fields are acting on one or both spin species. The second approach is termed clock-comparison, where the free-precession frequencies of two nuclear spin species are compared to reveal frequency shifts of non-magnetic origin. The implementations of both approaches in this thesis utilize the highly sensitive spin-exchange-relaxation free (SERF) magnetometer to probe spin dynamics. The two approaches complement each other, in the sense that the alkali-metal-noble-gas comagnetometer performs better at short time scales, i.e. within a few minutes, but does not have good long-term stability primarily due to drifts in optical alignment, while the free-precession comagnetometer accommodates days-long interrogation time, but the sampling rate that optimizes sensitivity is on the order of 1/T2 ≃ 0.001 Hz, which is determined by the T2 coherence time of the noble-gas nuclear spins. This thesis investigates a pulsed optical pumping approach for the alkali-metal-noble-gas comagnetometer, which reduces sensitivity to certain types of optical misalignments. The pulsed mode is capable of simultaneous measurement of couplings along two orthogonal axes in the plane perpendicular to the pump beam, while its continuously pumped predecessors are sensitive to a single axis. For the free-precession comagnetometer, a 3He and 21Ne system is optimized, taking advantage of the long coherence times and weak self-interactions among the spins. Sub-nHz sensitivity over one day is attained, which corresponds to 10−24 eV energy sensitivity, rendering it the most sensitive comagnetometer of this type.
- 일반주제명
- Physics
- 일반주제명
- Atomic physics
- 일반주제명
- Quantum physics
- 키워드
- Co-magnetometry
- 기타저자
- Princeton University Physics
- 기본자료저록
- Dissertations Abstracts International. 85-12B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520250211151328
■006m o d
■007cr#unu||||||||
■020 ▼a9798382809526
■035 ▼a(MiAaPQ)AAI31240398
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a530
■1001 ▼aWang, Jingyao.
■24510▼aTwo Approaches for Nuclear Spin Co-Magnetometry
■260 ▼a[Sl]▼bPrinceton University▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a289 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 85-12, Section: B.
■500 ▼aAdvisor: Romalis, Michael V.
■5021 ▼aThesis (Ph.D.)--Princeton University, 2024.
■520 ▼aNuclear spin comagnetometers are precision probes well-suited for tests of fundamental physics and inertial rotation sensing, thanks to their inherent suppression of magnetic field noise. This thesis discusses developments in two approaches commonly employed for nuclear spin comagnetometry. The first approach is termed quantization-axis comparison, where the ensemble-averaged spin orientation of alkali-metal electron spins and noble-gas nuclear spins are compared to determine if any anomalous fields that couple to the spins differently from magnetic fields are acting on one or both spin species. The second approach is termed clock-comparison, where the free-precession frequencies of two nuclear spin species are compared to reveal frequency shifts of non-magnetic origin. The implementations of both approaches in this thesis utilize the highly sensitive spin-exchange-relaxation free (SERF) magnetometer to probe spin dynamics. The two approaches complement each other, in the sense that the alkali-metal-noble-gas comagnetometer performs better at short time scales, i.e. within a few minutes, but does not have good long-term stability primarily due to drifts in optical alignment, while the free-precession comagnetometer accommodates days-long interrogation time, but the sampling rate that optimizes sensitivity is on the order of 1/T2 ≃ 0.001 Hz, which is determined by the T2 coherence time of the noble-gas nuclear spins. This thesis investigates a pulsed optical pumping approach for the alkali-metal-noble-gas comagnetometer, which reduces sensitivity to certain types of optical misalignments. The pulsed mode is capable of simultaneous measurement of couplings along two orthogonal axes in the plane perpendicular to the pump beam, while its continuously pumped predecessors are sensitive to a single axis. For the free-precession comagnetometer, a 3He and 21Ne system is optimized, taking advantage of the long coherence times and weak self-interactions among the spins. Sub-nHz sensitivity over one day is attained, which corresponds to 10−24 eV energy sensitivity, rendering it the most sensitive comagnetometer of this type.
■590 ▼aSchool code: 0181.
■650 4▼aPhysics
■650 4▼aAtomic physics
■650 4▼aQuantum physics
■653 ▼aAtomic magnetometer
■653 ▼aCo-magnetometry
■653 ▼aNuclear spin gyroscope
■653 ▼aPrecision measurement
■690 ▼a0605
■690 ▼a0748
■690 ▼a0599
■71020▼aPrinceton University▼bPhysics.
■7730 ▼tDissertations Abstracts International▼g85-12B.
■790 ▼a0181
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17161234▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
