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Fractionalization and Disorder in Strongly Correlated Systems
Fractionalization and Disorder in Strongly Correlated Systems
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211151441
- ISBN
- 9798382785134
- DDC
- 530
- 서명/저자
- Fractionalization and Disorder in Strongly Correlated Systems
- 발행사항
- [Sl] : Harvard University, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 349 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 85-12, Section: B.
- 주기사항
- Advisor: Sachdev, Subir.
- 학위논문주기
- Thesis (Ph.D.)--Harvard University, 2024.
- 초록/해제
- 요약Emergence in systems of many electrons can lead to macroscopic demonstrations of quantum mechanics which are intrinsically many-body. A primary focus of this dissertation is the phenomena of fractionalization, where the effective quasiparticles which emerge at long distances exhibit fractional quantum numbers of the microscopic degrees of freedom. The interplay between these emergent degrees of freedom and the microscopic symmetries can lead to a number of exotic properties including competing orders and unconventional phase transitions. I explore this phenomena in a number of platforms. This includes quantum antiferromagnets which can give rise to quantum spin liquids, where we predict critical properties of phase transitions between spin liquids and conventionally-ordered phases - due to the fractionalized excitations, such critical theories deviate from traditional Landau-Ginzburg predictions. I also study the interplay between fractionalized spin and charge excitations, as well as fractionalization in non-equilibrium contexts.The second goal of this dissertation is to investigate the properties of disordered, strongly interacting, zero dimensional systems which exemplify many notable properties of higher-dimensional systems, such as doping-induced quantum criticality and non-Fermi liquid transport. The effects of disorder play an essential role in these models, leading to phenomena such as spin glass phases and conductance fluctuations which we investigate through both numerical and analytical methods.
- 일반주제명
- Physics
- 일반주제명
- Condensed matter physics
- 일반주제명
- Electromagnetics
- 일반주제명
- Quantum physics
- 키워드
- Condensed matter
- 기타저자
- Harvard University Physics
- 기본자료저록
- Dissertations Abstracts International. 85-12B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■020 ▼a9798382785134
■035 ▼a(MiAaPQ)AAI31296122
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a530
■1001 ▼aShackleton, Henry J.▼0(orcid)0000-0002-1971-6426
■24510▼aFractionalization and Disorder in Strongly Correlated Systems
■260 ▼a[Sl]▼bHarvard University▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a349 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 85-12, Section: B.
■500 ▼aAdvisor: Sachdev, Subir.
■5021 ▼aThesis (Ph.D.)--Harvard University, 2024.
■520 ▼aEmergence in systems of many electrons can lead to macroscopic demonstrations of quantum mechanics which are intrinsically many-body. A primary focus of this dissertation is the phenomena of fractionalization, where the effective quasiparticles which emerge at long distances exhibit fractional quantum numbers of the microscopic degrees of freedom. The interplay between these emergent degrees of freedom and the microscopic symmetries can lead to a number of exotic properties including competing orders and unconventional phase transitions. I explore this phenomena in a number of platforms. This includes quantum antiferromagnets which can give rise to quantum spin liquids, where we predict critical properties of phase transitions between spin liquids and conventionally-ordered phases - due to the fractionalized excitations, such critical theories deviate from traditional Landau-Ginzburg predictions. I also study the interplay between fractionalized spin and charge excitations, as well as fractionalization in non-equilibrium contexts.The second goal of this dissertation is to investigate the properties of disordered, strongly interacting, zero dimensional systems which exemplify many notable properties of higher-dimensional systems, such as doping-induced quantum criticality and non-Fermi liquid transport. The effects of disorder play an essential role in these models, leading to phenomena such as spin glass phases and conductance fluctuations which we investigate through both numerical and analytical methods.
■590 ▼aSchool code: 0084.
■650 4▼aPhysics
■650 4▼aCondensed matter physics
■650 4▼aElectromagnetics
■650 4▼aQuantum physics
■653 ▼aCondensed matter
■653 ▼aCondensed matter theory
■653 ▼aQuantum spin liquids
■653 ▼aConductance fluctuations
■653 ▼aPhase transitions
■690 ▼a0605
■690 ▼a0611
■690 ▼a0599
■690 ▼a0607
■71020▼aHarvard University▼bPhysics.
■7730 ▼tDissertations Abstracts International▼g85-12B.
■790 ▼a0084
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17161760▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
