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Semiclassical Quantum Gravity and Holography
Semiclassical Quantum Gravity and Holography
Semiclassical Quantum Gravity and Holography

Detailed Information

자료유형  
 학위논문 서양
최종처리일시  
20260202104702
ISBN  
9798291544181
DDC  
530.1
저자명  
Grabovsky, David.
서명/저자  
Semiclassical Quantum Gravity and Holography
발행사항  
[Sl] : University of California, Santa Barbara, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
248 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-02, Section: B.
주기사항  
Advisor: Berenstein, David.
학위논문주기  
Thesis (Ph.D.)--University of California, Santa Barbara, 2025.
초록/해제  
요약This thesis reports on several aspects of semiclassical quantum gravity within the framework of holography duality. Among these are the relation between boundary causality and locality in AdS/CFT, correlation functions in 3d gravity and 2d CFT, and spin-refined observables computed by the gravitational path integral. Chapter 1 is introductory and describes some general features of semiclassical quantum gravity, holographic duality, and universal aspects of AdS3/CFT2. Following this introduction, Chapter 2 develops the machinery of 2d CFT more thoroughly. Chapter 3 studies an apparent paradox in AdS/CFT whereby the boundary subregion encoding a bulk point can appear to violate causality by moving superluminally. The paradox is resolved by the non-local nature of the encoding, which gives the boundary subregion its finite extent. The encoding region cannot jump outside of its domain of dependence, and therefore remains in causal contact with itself as it moves.Chapters 4 and 5 are concerned with holographic correlators in AdS3/CFT2. We consider fields propagating in the geometries of heavy objects like conical defects and BTZ black holes, which have dual descriptions as excited or thermal states of the CFT. These chapters describe several calculations of correlators of such fields using both gravity and CFT techniques. The match between the bulk and boundary results allows us to extract universal CFT data that determines the amplitudes to create excitations of the light field, as well as the expectation values of an infinite family of two-particle states exchanged between the heavy and light fields. In the CFT, these are HHL OPE coefficients for a family of double-trace operators whose presence is required by crossing symmetry.Chapter 6 investigates spin-refined partition functions in AdS/CFT using the Euclidean gravitational path integral. These objects have the form Tr (e −βHX), where X is a discrete isometry. We construct phase diagrams for various choices of X, devoting particular attention to the case where X is a reflection. A CRT -twisted black hole universally dominates the canonical ensemble for this quantity at high temperatures, while complex rotating black holes dominate the microcanonical ensemble at high energies.
일반주제명  
Theoretical physics
일반주제명  
Physics
일반주제명  
Astrophysics
일반주제명  
Computational physics
키워드  
AdS/CFT
키워드  
Black holes
키워드  
Holographic duality
키워드  
Quantum gravity
키워드  
Euclidean gravitational path integral
기타저자  
University of California, Santa Barbara Physics
기본자료저록  
Dissertations Abstracts International. 87-02B.
전자적 위치 및 접속  
로그인 후 원문을 볼 수 있습니다.

MARC

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■020    ▼a9798291544181
■035    ▼a(MiAaPQ)AAI32116286
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a530.1
■1001  ▼aGrabovsky,  David.
■24510▼aSemiclassical  Quantum  Gravity  and  Holography
■260    ▼a[Sl]▼bUniversity  of  California,  Santa  Barbara▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a248  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-02,  Section:  B.
■500    ▼aAdvisor:  Berenstein,  David.
■5021  ▼aThesis  (Ph.D.)--University  of  California,  Santa  Barbara,  2025.
■520    ▼aThis  thesis  reports  on  several  aspects  of  semiclassical  quantum  gravity  within  the  framework  of  holography  duality.  Among  these  are  the  relation  between  boundary  causality  and  locality  in  AdS/CFT,  correlation  functions  in  3d  gravity  and  2d  CFT,  and  spin-refined  observables  computed  by  the  gravitational  path  integral. Chapter  1  is  introductory  and  describes  some  general  features  of  semiclassical  quantum  gravity,  holographic  duality,  and  universal  aspects  of  AdS3/CFT2.  Following  this  introduction,  Chapter  2  develops  the  machinery  of  2d  CFT  more  thoroughly. Chapter  3  studies  an  apparent  paradox  in  AdS/CFT  whereby  the  boundary  subregion  encoding  a  bulk  point  can  appear  to  violate  causality  by  moving  superluminally.  The  paradox  is  resolved  by  the  non-local  nature  of  the  encoding,  which  gives  the  boundary  subregion  its  finite  extent.  The  encoding  region  cannot  jump  outside  of  its  domain  of  dependence,  and  therefore  remains  in  causal  contact  with  itself  as  it  moves.Chapters  4  and  5  are  concerned  with  holographic  correlators  in  AdS3/CFT2.  We  consider  fields  propagating  in  the  geometries  of  heavy  objects  like  conical  defects  and  BTZ  black  holes,  which  have  dual  descriptions  as  excited  or  thermal  states  of  the  CFT.  These  chapters  describe  several  calculations  of  correlators  of  such  fields  using  both  gravity  and  CFT  techniques.  The  match  between  the  bulk  and  boundary  results  allows  us  to  extract  universal  CFT  data  that  determines  the  amplitudes  to  create  excitations  of  the  light  field,  as  well  as  the  expectation  values  of  an  infinite  family  of  two-particle  states  exchanged  between  the  heavy  and  light  fields.  In  the  CFT,  these  are  HHL  OPE  coefficients  for  a  family  of  double-trace  operators  whose  presence  is  required  by  crossing  symmetry.Chapter  6  investigates  spin-refined  partition  functions  in  AdS/CFT  using  the  Euclidean  gravitational  path  integral.  These  objects  have  the  form  Tr  (e  −βHX),  where  X  is  a  discrete  isometry.  We  construct  phase  diagrams  for  various  choices  of  X,  devoting  particular  attention  to  the  case  where  X  is  a  reflection.  A  CRT  -twisted  black  hole  universally  dominates  the  canonical  ensemble  for  this  quantity  at  high  temperatures,  while  complex  rotating  black  holes  dominate  the  microcanonical  ensemble  at  high  energies.
■590    ▼aSchool  code:  0035.
■650  4▼aTheoretical  physics
■650  4▼aPhysics
■650  4▼aAstrophysics
■650  4▼aComputational  physics
■653    ▼aAdS/CFT
■653    ▼aBlack  holes
■653    ▼aHolographic  duality
■653    ▼aQuantum  gravity
■653    ▼aEuclidean  gravitational  path  integral
■690    ▼a0753
■690    ▼a0605
■690    ▼a0596
■690    ▼a0216
■71020▼aUniversity  of  California,  Santa  Barbara▼bPhysics.
■7730  ▼tDissertations  Abstracts  International▼g87-02B.
■790    ▼a0035
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17358434▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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