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Topics in Quantum Gravity and Quantum Information.
Topics in Quantum Gravity and Quantum Information.

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자료유형  
 학위논문
Control Number  
0017161281
International Standard Book Number  
9798384450184
Dewey Decimal Classification Number  
530.1
Main Entry-Personal Name  
Caginalp, Reginald.
Publication, Distribution, etc. (Imprint  
[S.l.] : University of California, Berkeley., 2024
Publication, Distribution, etc. (Imprint  
Ann Arbor : ProQuest Dissertations & Theses, 2024
Physical Description  
121 p.
General Note  
Source: Dissertations Abstracts International, Volume: 86-04, Section: B.
General Note  
Advisor: Nomura, Yasunori.
Dissertation Note  
Thesis (Ph.D.)--University of California, Berkeley, 2024.
Summary, Etc.  
요약This dissertation explores numerous applications of concepts from quantum information theory to quantum gravity, the AdS/CFT correspondence, as well as holographic dualities more generally. A recurring theme will be the notion that geometric quantities in the bulk are dual to information-theoretic quantities in the boundary. The Ryu-Takayanagi formula and related results tell us that entanglement entropies in the CFT are given in terms of the areas of minimal surface in the bulk. This geometric formula for entanglement entropy imposes inequalities on the entanglement entropies of various CFT regions for static spacetimes, known as the holographic entropy cone. We will numerically investigate the validity of the five-region inequalities for a specific dynamical spacetime, a collapsing black hole spacetime. We find that, for all cases considered, all of the inequalities are satisfied when the null energy condition is satisfied in the bulk, while all of the inequalities are violated if the null energy condition is not satisfied in the bulk. This provides some evidence for the validity of the five-region inequalities in general settings in AdS/CFT with a dynamical bulk. We then discuss the complexity-action and complexity-volume conjectures in the setting of holographic Friedmann-Robertson-Walker universes, which are more realistic cosmological models than AdS space. These conjectures pass some non-trivial consistency checks in these settings. Following this, operator complexity is studied numerically for one- and two-qubit systems using Nielsen complexity geometry. Even though these are relatively simple systems, some interesting similarities are found with the behavior of complexity for more interesting, larger systems. Finally, we explore the use of sandwiched Renyi relative entropy in holography, and in finite-dimensional models of quantum error correction.
Subject Added Entry-Topical Term  
Theoretical physics.
Subject Added Entry-Topical Term  
Particle physics.
Subject Added Entry-Topical Term  
Quantum physics.
Subject Added Entry-Topical Term  
Physics.
Index Term-Uncontrolled  
Quantum gravity
Index Term-Uncontrolled  
Finite-dimensional models
Index Term-Uncontrolled  
CFT regions
Index Term-Uncontrolled  
Nielsen complexity geometry
Added Entry-Corporate Name  
University of California, Berkeley Physics
Host Item Entry  
Dissertations Abstracts International. 86-04B.
Electronic Location and Access  
로그인을 한후 보실 수 있는 자료입니다.
Control Number  
joongbu:658529

MARC

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■020    ▼a9798384450184
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■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a530.1
■1001  ▼aCaginalp,  Reginald.
■24510▼aTopics  in  Quantum  Gravity  and  Quantum  Information.
■260    ▼a[S.l.]▼bUniversity  of  California,  Berkeley.  ▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a121  p.
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  86-04,  Section:  B.
■500    ▼aAdvisor:  Nomura,  Yasunori.
■5021  ▼aThesis  (Ph.D.)--University  of  California,  Berkeley,  2024.
■520    ▼aThis  dissertation  explores  numerous  applications  of  concepts  from  quantum  information  theory  to  quantum  gravity,  the  AdS/CFT  correspondence,  as  well  as  holographic  dualities  more  generally.  A  recurring  theme  will  be  the  notion  that  geometric  quantities  in  the  bulk  are  dual  to  information-theoretic  quantities  in  the  boundary.  The  Ryu-Takayanagi  formula  and  related  results  tell  us  that  entanglement  entropies  in  the  CFT  are  given  in  terms  of  the  areas  of  minimal  surface  in  the  bulk.  This  geometric  formula  for  entanglement  entropy  imposes  inequalities  on  the  entanglement  entropies  of  various  CFT  regions  for  static  spacetimes,  known  as  the  holographic  entropy  cone.  We  will  numerically  investigate  the  validity  of  the  five-region  inequalities  for  a  specific  dynamical  spacetime,  a  collapsing  black  hole  spacetime.  We  find  that,  for  all  cases  considered,  all  of  the  inequalities  are  satisfied  when  the  null  energy  condition  is  satisfied  in  the  bulk,  while  all  of  the  inequalities  are  violated  if  the  null  energy  condition  is  not  satisfied  in  the  bulk.  This  provides  some  evidence  for  the  validity  of  the  five-region  inequalities  in  general  settings  in  AdS/CFT  with  a  dynamical  bulk.  We  then  discuss  the  complexity-action  and  complexity-volume  conjectures  in  the  setting  of  holographic  Friedmann-Robertson-Walker  universes,  which  are  more  realistic  cosmological  models  than  AdS  space.  These  conjectures  pass  some  non-trivial  consistency  checks  in  these  settings.  Following  this,  operator  complexity  is  studied  numerically  for  one-  and  two-qubit  systems  using  Nielsen  complexity  geometry.  Even  though  these  are  relatively  simple  systems,  some  interesting  similarities  are  found  with  the  behavior  of  complexity  for  more  interesting,  larger  systems.  Finally,  we  explore  the  use  of  sandwiched  Renyi  relative  entropy  in  holography,  and  in  finite-dimensional  models  of  quantum  error  correction.
■590    ▼aSchool  code:  0028.
■650  4▼aTheoretical  physics.
■650  4▼aParticle  physics.
■650  4▼aQuantum  physics.
■650  4▼aPhysics.
■653    ▼aQuantum  gravity
■653    ▼aFinite-dimensional  models
■653    ▼aCFT  regions
■653    ▼aNielsen  complexity  geometry
■690    ▼a0753
■690    ▼a0798
■690    ▼a0599
■690    ▼a0605
■71020▼aUniversity  of  California,  Berkeley▼bPhysics.
■7730  ▼tDissertations  Abstracts  International▼g86-04B.
■790    ▼a0028
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17161281▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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