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Interplay of Symmetry Breaking and Topological Order- [electronic resource]
Interplay of Symmetry Breaking and Topological Order - [electronic resource]
Interplay of Symmetry Breaking and Topological Order- [electronic resource]

Detailed Information

자료유형  
 학위논문파일 국외
최종처리일시  
20240214101646
ISBN  
9798380366663
DDC  
530
저자명  
Wang, Yanqi.
서명/저자  
Interplay of Symmetry Breaking and Topological Order - [electronic resource]
발행사항  
[S.l.]: : University of California, Berkeley., 2023
발행사항  
Ann Arbor : : ProQuest Dissertations & Theses,, 2023
형태사항  
1 online resource(190 p.)
주기사항  
Source: Dissertations Abstracts International, Volume: 85-03, Section: B.
주기사항  
Advisor: Moore, Joel E.
학위논문주기  
Thesis (Ph.D.)--University of California, Berkeley, 2023.
사용제한주기  
This item must not be sold to any third party vendors.
초록/해제  
요약The two most prevalent classes of ordered states in quantum materials are those arising from spontaneous symmetry breaking (SSB) and from topological order. However, a systematic study for their coexistence in interacting systems is still lacking. In this thesis, we will investigate how the topological configuration in order parameter spaces from SSB interplays with the symmetry protected/enriched topological orders in two spatial dimensions. We start from a phenomenological model of the domain wall structure in chiral spin liquids with domains of opposite chiralities. Based on a standard model, we obtain a spatially varying, self-consistent mean-field solution for the spinons that describes both the gapless edge modes and the change of chirality at the domain wall. We derive the non-universal properties, such as the velocity of the topologically protected domain wall edge states and its modification to domain wall tension. Then we discuss the interplay between topological orders from a more formal point of view. We consider two-dimensional topologically ordered systems with coexisting long-range orders, where the only gapless excitations in the spectrum are Goldstone modes of spontaneously broken continuous symmetries. We show that the universal properties of point defects and textures are determined by the remnant symmetry enriched topological order in the symmetry-breaking ground state with non-fluctuating order parameters, and provide a classification for their properties using algebraic topology. We further investigate the quantum dynamics that can happen at the domain wall of topological orders, where particle-hole scattering leads to linear-in-temperature resistivity of edge modes. Finally, we introduce an effective edge network theory to characterize the boundary topology of coupled edge states generated from various types of topological insulators.
일반주제명  
Physics.
일반주제명  
Condensed matter physics.
일반주제명  
Quantum physics.
키워드  
Algebraic topology
키워드  
Edge network
키워드  
Quantum dynamics
키워드  
Symmetry breaking
키워드  
Topological phases of matter
기타저자  
University of California, Berkeley Physics
기본자료저록  
Dissertations Abstracts International. 85-03B.
기본자료저록  
Dissertation Abstract International
전자적 위치 및 접속  
로그인 후 원문을 볼 수 있습니다.

MARC

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■00520240214101646
■006m          o    d                
■007cr#unu||||||||
■020    ▼a9798380366663
■035    ▼a(MiAaPQ)AAI30633722
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a530
■1001  ▼aWang,  Yanqi.
■24510▼aInterplay  of  Symmetry  Breaking  and  Topological  Order▼h[electronic  resource]
■260    ▼a[S.l.]:▼bUniversity  of  California,  Berkeley.  ▼c2023
■260  1▼aAnn  Arbor  :▼bProQuest  Dissertations  &  Theses,  ▼c2023
■300    ▼a1  online  resource(190  p.)
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  85-03,  Section:  B.
■500    ▼aAdvisor:  Moore,  Joel  E.
■5021  ▼aThesis  (Ph.D.)--University  of  California,  Berkeley,  2023.
■506    ▼aThis  item  must  not  be  sold  to  any  third  party  vendors.
■520    ▼aThe  two  most  prevalent  classes  of  ordered  states  in  quantum  materials  are  those  arising  from  spontaneous  symmetry  breaking  (SSB)  and  from  topological  order.  However,  a  systematic  study  for  their  coexistence  in  interacting  systems  is  still  lacking.  In  this  thesis,  we  will  investigate  how  the  topological  configuration  in  order  parameter  spaces  from  SSB  interplays  with  the  symmetry  protected/enriched  topological  orders  in  two  spatial  dimensions.  We  start  from  a  phenomenological  model  of  the  domain  wall  structure  in  chiral  spin  liquids  with  domains  of  opposite  chiralities.  Based  on  a  standard  model,  we  obtain  a  spatially  varying,  self-consistent  mean-field  solution  for  the  spinons  that  describes  both  the  gapless  edge  modes  and  the  change  of  chirality  at  the  domain  wall.  We  derive  the  non-universal  properties,  such  as  the  velocity  of  the  topologically  protected  domain  wall  edge  states  and  its  modification  to  domain  wall  tension.  Then  we  discuss  the  interplay  between  topological  orders  from  a  more  formal  point  of  view.  We  consider  two-dimensional  topologically  ordered  systems  with  coexisting  long-range  orders,  where  the  only  gapless  excitations  in  the  spectrum  are  Goldstone  modes  of  spontaneously  broken  continuous  symmetries.  We  show  that  the  universal  properties  of  point  defects  and  textures  are  determined  by  the  remnant  symmetry  enriched  topological  order  in  the  symmetry-breaking  ground  state  with  non-fluctuating  order  parameters,  and  provide  a  classification  for  their  properties  using  algebraic  topology.  We  further  investigate  the  quantum  dynamics  that  can  happen  at  the  domain  wall  of  topological  orders,  where  particle-hole  scattering  leads  to  linear-in-temperature  resistivity  of  edge  modes.  Finally,  we  introduce  an  effective  edge  network  theory  to  characterize  the  boundary  topology  of  coupled  edge  states  generated  from  various  types  of  topological  insulators.
■590    ▼aSchool  code:  0028.
■650  4▼aPhysics.
■650  4▼aCondensed  matter  physics.
■650  4▼aQuantum  physics.
■653    ▼aAlgebraic  topology
■653    ▼aEdge  network
■653    ▼aQuantum  dynamics
■653    ▼aSymmetry  breaking
■653    ▼aTopological  phases  of  matter
■690    ▼a0605
■690    ▼a0611
■690    ▼a0599
■71020▼aUniversity  of  California,  Berkeley▼bPhysics.
■7730  ▼tDissertations  Abstracts  International▼g85-03B.
■773    ▼tDissertation  Abstract  International
■790    ▼a0028
■791    ▼aPh.D.
■792    ▼a2023
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T16934728▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.
■980    ▼a202402▼f2024

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