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Topological Quantum Matter: Bridging Theory and Experiment
Topological Quantum Matter: Bridging Theory and Experiment
Detailed Information
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202104828
- ISBN
- 9798293835706
- DDC
- 530
- 저자명
- Nambiar, Gautam.
- 서명/저자
- Topological Quantum Matter: Bridging Theory and Experiment
- 발행사항
- [Sl] : University of Maryland, College Park, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 339 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-03, Section: B.
- 주기사항
- Advisor: Galitski, Victor;Hafezi, Mohammad.
- 학위논문주기
- Thesis (Ph.D.)--University of Maryland, College Park, 2025.
- 초록/해제
- 요약Quantum many-body systems host a variety of exotic phases which can be described as the deconfined phase of an emergent gauge theory. Such phases in the context of spin systems go by the name Quantum Spin Liquids (QSLs). Often, the same features that make them interesting also make them hard to detect experimentally. This thesis is a collection of works aimed at connecting the defining theoretical properties of such phases to experimentally accessible observables, both in the setting of solid state materials and quantum devices.The main theme of the first part of the thesis is magnetic monopoles of emergent compact U(1) gauge theories that describe certain QSLs, namely Quantum Spin Ice and Dirac Spin Liquid in three and two spatial dimensions respectively. The condensation of monopoles drives a deconfinement-confinement phase transition in the gauge theory, and in the context of spin systems, drives transitions from QSL to ordered phases. We exploit this understanding to propose a ``Monopole Josephson Junction" scheme to test if a candidate material is a Dirac Spin Liquid. A key component of our detection scheme is Raman Scattering. Next, we provide a proposal to prepare and diagnose Quantum Spin Ice (deconfined phase of U(1) gauge theory in three spatial dimensions) in Rydberg atom arrays.In the second part of the thesis, we explore quantum optics techniques to probe correlated quantum materials. In optical experiments, the photonic observable measured is usually the intensity or photon number operator of inelastically scattered light. We ask a general question -- what can we learn about a material, given access to other photonic observables like quadrature and correlation between pairs of photons (G(2))? We develop a general formalism to map such photonic correlation functions to electronic ones. Focusing on the Hubbard model at half-filling, we show that such correlators can be used to probe spin-charge correlations, and to detect QSLs by detecting spin chirality and existence of fractional statistics.
- 일반주제명
- Condensed matter physics
- 일반주제명
- Quantum physics
- 일반주제명
- Atomic physics
- 키워드
- Quantum optics
- 키워드
- Rydberg atoms
- 기타저자
- University of Maryland, College Park Physics
- 기본자료저록
- Dissertations Abstracts International. 87-03B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520260202104828
■006m o d
■007cr#unu||||||||
■020 ▼a9798293835706
■035 ▼a(MiAaPQ)AAI32170167
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a530
■1001 ▼aNambiar, Gautam.▼0(orcid)0000-0003-4305-8600
■24510▼aTopological Quantum Matter: Bridging Theory and Experiment
■260 ▼a[Sl]▼bUniversity of Maryland, College Park▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a339 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-03, Section: B.
■500 ▼aAdvisor: Galitski, Victor;Hafezi, Mohammad.
■5021 ▼aThesis (Ph.D.)--University of Maryland, College Park, 2025.
■520 ▼aQuantum many-body systems host a variety of exotic phases which can be described as the deconfined phase of an emergent gauge theory. Such phases in the context of spin systems go by the name Quantum Spin Liquids (QSLs). Often, the same features that make them interesting also make them hard to detect experimentally. This thesis is a collection of works aimed at connecting the defining theoretical properties of such phases to experimentally accessible observables, both in the setting of solid state materials and quantum devices.The main theme of the first part of the thesis is magnetic monopoles of emergent compact U(1) gauge theories that describe certain QSLs, namely Quantum Spin Ice and Dirac Spin Liquid in three and two spatial dimensions respectively. The condensation of monopoles drives a deconfinement-confinement phase transition in the gauge theory, and in the context of spin systems, drives transitions from QSL to ordered phases. We exploit this understanding to propose a ``Monopole Josephson Junction" scheme to test if a candidate material is a Dirac Spin Liquid. A key component of our detection scheme is Raman Scattering. Next, we provide a proposal to prepare and diagnose Quantum Spin Ice (deconfined phase of U(1) gauge theory in three spatial dimensions) in Rydberg atom arrays.In the second part of the thesis, we explore quantum optics techniques to probe correlated quantum materials. In optical experiments, the photonic observable measured is usually the intensity or photon number operator of inelastically scattered light. We ask a general question -- what can we learn about a material, given access to other photonic observables like quadrature and correlation between pairs of photons (G(2))? We develop a general formalism to map such photonic correlation functions to electronic ones. Focusing on the Hubbard model at half-filling, we show that such correlators can be used to probe spin-charge correlations, and to detect QSLs by detecting spin chirality and existence of fractional statistics.
■590 ▼aSchool code: 0117.
■650 4▼aCondensed matter physics
■650 4▼aQuantum physics
■650 4▼aAtomic physics
■653 ▼aEmergent gauge theories
■653 ▼aQuantum optics
■653 ▼aQuantum simulation
■653 ▼aQuantum spin liquids
■653 ▼aRaman spectroscopy
■653 ▼aRydberg atoms
■690 ▼a0611
■690 ▼a0599
■690 ▼a0748
■71020▼aUniversity of Maryland, College Park▼bPhysics.
■7730 ▼tDissertations Abstracts International▼g87-03B.
■790 ▼a0117
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17359057▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
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