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Superradiance, Lasing, and Spin Glass Phase Transitions in Many-Body Driven-Dissipative Cavity QED
Superradiance, Lasing, and Spin Glass Phase Transitions in Many-Body Driven-Dissipative Cavity QED
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202104853
- ISBN
- 9798288816123
- DDC
- 530
- 서명/저자
- Superradiance, Lasing, and Spin Glass Phase Transitions in Many-Body Driven-Dissipative Cavity QED
- 발행사항
- [Sl] : Stanford University, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 102 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-02, Section: B.
- 주기사항
- Advisor: Lev, Benjamin.
- 학위논문주기
- Thesis (Ph.D.)--Stanford University, 2025.
- 초록/해제
- 요약Cavity quantum electrodynamics permits strong coupling of light and matter, as has been demonstrated in experiments with cold atoms. Here I suggest an approach wherein a two-dimensional material is placed within an optical cavity. Combined with transverse Raman pumping, this approach permits cavity modes to hybridize with phonon modes in the matter, creating phonon polaritons. We show that this driven-dissipative system may realize a phonon-polariton condensate by tuning the effective phonon-photon coupling via the pump strength. I show this by numerically finding the oscillatory stationary states and applying Floquet theory to determine their stability. I identify distinct superradiant and lasing states in which the polariton modes are macroscopically populated, and I plot the phase diagram of these states as a function of pump strength and frequency. Using parameters for transition metal dichalcogenides, I suggest that realization of these phases may be practicably obtainable. I also provide an extension of this model beyond the mean field, as a way to examine the specific contributions of multiple cavity modes on spatially distinct areas of the material. I then return to the traditional cold-atom context and provide numerical evidence that a confocal cavity can realize a spin glass through its effective matter-to-matter coupling. While this parallel tempering Monte Carlo simulation models the classical analog to the full driven-dissipative system, it forms the basis for further numerical investigations into the spin glass states created in the experiment. Together, this work highlights the versatility of the multimode optical cavity in systems with realizable phase boundaries.
- 일반주제명
- Phase transitions
- 일반주제명
- Eigenvalues
- 일반주제명
- Energy
- 일반주제명
- Electrons
- 일반주제명
- Fourier transforms
- 일반주제명
- Boundary conditions
- 일반주제명
- Symmetry
- 일반주제명
- Physics
- 일반주제명
- Quantum physics
- 키워드
- Floquet theory
- 키워드
- Superradiance
- 기타저자
- Stanford University.
- 기본자료저록
- Dissertations Abstracts International. 87-02B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520260202104853
■006m o d
■007cr#unu||||||||
■020 ▼a9798288816123
■035 ▼a(MiAaPQ)AAI32200986
■035 ▼a(MiAaPQ)Stanfordrh631bp2232
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a530
■1001 ▼aBourzutschky, Alexander N.
■24510▼aSuperradiance, Lasing, and Spin Glass Phase Transitions in Many-Body Driven-Dissipative Cavity QED
■260 ▼a[Sl]▼bStanford University▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a102 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-02, Section: B.
■500 ▼aAdvisor: Lev, Benjamin.
■5021 ▼aThesis (Ph.D.)--Stanford University, 2025.
■520 ▼aCavity quantum electrodynamics permits strong coupling of light and matter, as has been demonstrated in experiments with cold atoms. Here I suggest an approach wherein a two-dimensional material is placed within an optical cavity. Combined with transverse Raman pumping, this approach permits cavity modes to hybridize with phonon modes in the matter, creating phonon polaritons. We show that this driven-dissipative system may realize a phonon-polariton condensate by tuning the effective phonon-photon coupling via the pump strength. I show this by numerically finding the oscillatory stationary states and applying Floquet theory to determine their stability. I identify distinct superradiant and lasing states in which the polariton modes are macroscopically populated, and I plot the phase diagram of these states as a function of pump strength and frequency. Using parameters for transition metal dichalcogenides, I suggest that realization of these phases may be practicably obtainable. I also provide an extension of this model beyond the mean field, as a way to examine the specific contributions of multiple cavity modes on spatially distinct areas of the material. I then return to the traditional cold-atom context and provide numerical evidence that a confocal cavity can realize a spin glass through its effective matter-to-matter coupling. While this parallel tempering Monte Carlo simulation models the classical analog to the full driven-dissipative system, it forms the basis for further numerical investigations into the spin glass states created in the experiment. Together, this work highlights the versatility of the multimode optical cavity in systems with realizable phase boundaries.
■590 ▼aSchool code: 0212.
■650 4▼aPhase transitions
■650 4▼aEigenvalues
■650 4▼aEnergy
■650 4▼aElectrons
■650 4▼aFourier transforms
■650 4▼aBoundary conditions
■650 4▼aAtoms & subatomic particles
■650 4▼aSymmetry
■650 4▼aPhysics
■650 4▼aQuantum physics
■653 ▼aCavity quantum electrodynamics
■653 ▼aFloquet theory
■653 ▼aSuperradiance
■690 ▼a0791
■690 ▼a0599
■690 ▼a0605
■71020▼aStanford University.
■7730 ▼tDissertations Abstracts International▼g87-02B.
■790 ▼a0212
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17359234▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
