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Autonomous Stabilization and Quantum Squeezing of a Spin Ensemble Coupled to a Driven Optical Cavity
Autonomous Stabilization and Quantum Squeezing of a Spin Ensemble Coupled to a Driven Optical Cavity
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202105115
- ISBN
- 9798297601680
- DDC
- 539
- 저자명
- Eilbott, Olive.
- 서명/저자
- Autonomous Stabilization and Quantum Squeezing of a Spin Ensemble Coupled to a Driven Optical Cavity
- 발행사항
- [Sl] : University of California, Berkeley, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 134 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-04, Section: B.
- 주기사항
- Advisor: Stamper-Kurn, Dan M.
- 학위논문주기
- Thesis (Ph.D.)--University of California, Berkeley, 2025.
- 초록/해제
- 요약The development of quantum mechanics introduced ideas of measurement and information connected to the quantum nature of systems under study. Measurement is intrinsically linked to back-action that disturbs the measured system. Information extracted from a classical or quantum system can be used to steer the state of the system by conditioning the action of an appropriate actuator on the extracted information. Classical feedback to a quantum system involves conditioning the system Hamiltonian on measurement results, and in recent years has been used to produce entangled states that have been shown to exhibit squeezing. In the absence of conditional input to a system, dissipation can cause interacting subsystems and single systems with time-delayed self-interactions to exhibit coherent quantum feedback, wherein the interactions stabilize the system state.In this work I explore the optodynamical light-matter interaction between a cloud of atoms and a dispersively coupled optical cavity and study the exchange of angular momentum between the light field and the collective atomic spin formed by symmetrically coupled 87Rb atoms in their F = 2 hyperfine ground-state manifold. Weaving together the two concepts of conditional squeezing by weak measurement and of autonomous optodynamical stabilization, I build a theory of a novel type of autonomous squeezing in which dissipative coherent quantum feedback powered by light pumping the cavity produces an unconditionally squeezed spin state. Additionally, I show that the state is simultaneously conditionally squeezed. Equipped with a portion of the information carried by photons leaving the cavity, a conditional rotation on the state produces a deterministically squeezed state of the collective spin out to infinite time, in the absence of scattering and other decoherence. In the presence of scattering I show that the system exhibits squeezing at intermediate times.In a detour from spin optodynamics, I report a series of experiments exploring molecular photoassociation in an optical cavity that demonstrate real-time monitoring of the photoassociation dynamics, and I discuss the prospects and motivation for observing cavity-mediated photoassociation.
- 일반주제명
- Atomic physics
- 일반주제명
- Molecular physics
- 일반주제명
- Quantum physics
- 일반주제명
- Optics
- 키워드
- Stabilization
- 키워드
- Optical cavity
- 키워드
- Optodynamics
- 기타저자
- University of California, Berkeley Physics
- 기본자료저록
- Dissertations Abstracts International. 87-04B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520260202105115
■006m o d
■007cr#unu||||||||
■020 ▼a9798297601680
■035 ▼a(MiAaPQ)AAI32237348
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a539
■1001 ▼aEilbott, Olive.
■24510▼aAutonomous Stabilization and Quantum Squeezing of a Spin Ensemble Coupled to a Driven Optical Cavity
■260 ▼a[Sl]▼bUniversity of California, Berkeley▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a134 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-04, Section: B.
■500 ▼aAdvisor: Stamper-Kurn, Dan M.
■5021 ▼aThesis (Ph.D.)--University of California, Berkeley, 2025.
■520 ▼aThe development of quantum mechanics introduced ideas of measurement and information connected to the quantum nature of systems under study. Measurement is intrinsically linked to back-action that disturbs the measured system. Information extracted from a classical or quantum system can be used to steer the state of the system by conditioning the action of an appropriate actuator on the extracted information. Classical feedback to a quantum system involves conditioning the system Hamiltonian on measurement results, and in recent years has been used to produce entangled states that have been shown to exhibit squeezing. In the absence of conditional input to a system, dissipation can cause interacting subsystems and single systems with time-delayed self-interactions to exhibit coherent quantum feedback, wherein the interactions stabilize the system state.In this work I explore the optodynamical light-matter interaction between a cloud of atoms and a dispersively coupled optical cavity and study the exchange of angular momentum between the light field and the collective atomic spin formed by symmetrically coupled 87Rb atoms in their F = 2 hyperfine ground-state manifold. Weaving together the two concepts of conditional squeezing by weak measurement and of autonomous optodynamical stabilization, I build a theory of a novel type of autonomous squeezing in which dissipative coherent quantum feedback powered by light pumping the cavity produces an unconditionally squeezed spin state. Additionally, I show that the state is simultaneously conditionally squeezed. Equipped with a portion of the information carried by photons leaving the cavity, a conditional rotation on the state produces a deterministically squeezed state of the collective spin out to infinite time, in the absence of scattering and other decoherence. In the presence of scattering I show that the system exhibits squeezing at intermediate times.In a detour from spin optodynamics, I report a series of experiments exploring molecular photoassociation in an optical cavity that demonstrate real-time monitoring of the photoassociation dynamics, and I discuss the prospects and motivation for observing cavity-mediated photoassociation.
■590 ▼aSchool code: 0028.
■650 4▼aAtomic physics
■650 4▼aMolecular physics
■650 4▼aQuantum physics
■650 4▼aOptics
■653 ▼aQuantum mechanics
■653 ▼aStabilization
■653 ▼aQuantum squeezing
■653 ▼aOptical cavity
■653 ▼aOptodynamics
■690 ▼a0748
■690 ▼a0752
■690 ▼a0599
■690 ▼a0609
■71020▼aUniversity of California, Berkeley▼bPhysics.
■7730 ▼tDissertations Abstracts International▼g87-04B.
■790 ▼a0028
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17359408▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


