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Topological Phenomena in QCD and Related Theories
Topological Phenomena in QCD and Related Theories
Topological Phenomena in QCD and Related Theories

상세정보

자료유형  
 학위논문 서양
최종처리일시  
20250211152648
ISBN  
9798342303880
DDC  
530.1
저자명  
Frenklakh, David.
서명/저자  
Topological Phenomena in QCD and Related Theories
발행사항  
[Sl] : State University of New York at Stony Brook, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
163 p
주기사항  
Source: Dissertations Abstracts International, Volume: 86-04, Section: B.
주기사항  
Advisor: Kharzeev, Dmitri.
학위논문주기  
Thesis (Ph.D.)--State University of New York at Stony Brook, 2024.
초록/해제  
요약Quantum Chromodynamics (QCD) is the modern theory of strong nuclear interaction. Its intricate topological phenomena, spanning from the vacuum to excited states, especially baryons, provide unique insights into the dynamics of high-energy scattering processes involving protons or heavy ions. Similar phenomena can be identified and explored in lower-dimensional theories used as toy models of QCD.In this dissertation, we first investigate the topological structure across various energy scales in baryon states. The topological structure of gluon distribution is expected to influence the spin decomposition at the partonic level, a cornerstone of the future Electron-Ion Collider (EIC) experimental program. In this dissertation we explore an analog of such a structure in 1+1 dimensional QCD in an exactly solvable limit and identify the signatures of topology in constituents carrying a small momentum fraction. Moreover, the topological configuration of a junction of color strings connecting the valence quarks is believed to transport the baryon number in high-energy hadron-hadron collisions. We study the implications of this concept for electron-proton collisions and obtain refined predictions for rapidity distributions of produced baryons, accounting for correlations between fragmenting strings. The topology of the QCD vacuum is expected to manifest in local event-by-event CP violation in heavy ion collisions, leading to anomalous transport effects like the chiral magnetic effect (CME). We suggest a novel baryon number-electric charge correlator in which the anomalous transport contribution scales linearly with the net baryon number at midrapidity. This property offers a means to isolate the CME contribution from the background, facilitating the detection of the CME in heavy ion collisions.Finally, we address the question of quantum entanglement between the fragmenting jets in the context of 1+1-dimensional quantum electrodynamics. Using quantum simulations on classical hardware, we observe steady entanglement entropy generation and identify the degrees of freedom responsible for it. We notice that they transition from fermionic Fock states to meson-like bound states during jet fragmentation, thus representing a direct analog of hadronization in real time.
일반주제명  
Theoretical physics
일반주제명  
Nuclear physics
일반주제명  
Energy
일반주제명  
Particle physics
키워드  
Quantum Chromodynamics
키워드  
Chiral magnetic effect
키워드  
Electron-Ion Collider
키워드  
Deep Inelastic Scattering
키워드  
Chirality distributions
기타저자  
State University of New York at Stony Brook Physics
기본자료저록  
Dissertations Abstracts International. 86-04B.
전자적 위치 및 접속  
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MARC

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■020    ▼a9798342303880
■035    ▼a(MiAaPQ)AAI31486301
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a530.1
■1001  ▼aFrenklakh,  David.
■24510▼aTopological  Phenomena  in  QCD  and  Related  Theories
■260    ▼a[Sl]▼bState  University  of  New  York  at  Stony  Brook▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a163  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  86-04,  Section:  B.
■500    ▼aAdvisor:  Kharzeev,  Dmitri.
■5021  ▼aThesis  (Ph.D.)--State  University  of  New  York  at  Stony  Brook,  2024.
■520    ▼aQuantum  Chromodynamics  (QCD)  is  the  modern  theory  of  strong  nuclear  interaction.  Its  intricate  topological  phenomena,  spanning  from  the  vacuum  to  excited  states,  especially  baryons,  provide  unique  insights  into  the  dynamics  of  high-energy  scattering  processes  involving  protons  or  heavy  ions.  Similar  phenomena  can  be  identified  and  explored  in  lower-dimensional  theories  used  as  toy  models  of  QCD.In  this  dissertation,  we  first  investigate  the  topological  structure  across  various  energy  scales  in  baryon  states.  The  topological  structure  of  gluon  distribution  is  expected  to  influence  the  spin  decomposition  at  the  partonic  level,  a  cornerstone  of  the  future  Electron-Ion  Collider  (EIC)  experimental  program.  In  this  dissertation  we  explore  an  analog  of  such  a  structure  in  1+1  dimensional  QCD  in  an  exactly  solvable  limit  and  identify  the  signatures  of  topology  in  constituents  carrying  a  small  momentum  fraction.  Moreover,  the  topological  configuration  of  a  junction  of  color  strings  connecting  the  valence  quarks  is  believed  to  transport  the  baryon  number  in  high-energy  hadron-hadron  collisions.  We  study  the  implications  of  this  concept  for  electron-proton  collisions  and  obtain  refined  predictions  for  rapidity  distributions  of  produced  baryons,  accounting  for  correlations  between  fragmenting  strings.    The  topology  of  the  QCD  vacuum  is  expected  to  manifest  in  local  event-by-event  CP  violation  in  heavy  ion  collisions,  leading  to  anomalous  transport  effects  like  the  chiral  magnetic  effect  (CME).  We  suggest  a  novel  baryon  number-electric  charge  correlator  in  which  the  anomalous  transport  contribution  scales  linearly  with  the  net  baryon  number  at  midrapidity.  This  property  offers  a  means  to  isolate  the  CME  contribution  from  the  background,  facilitating  the  detection  of  the  CME  in  heavy  ion  collisions.Finally,  we  address  the  question  of  quantum  entanglement  between  the  fragmenting  jets  in  the  context  of  1+1-dimensional  quantum  electrodynamics.  Using  quantum  simulations  on  classical  hardware,  we  observe  steady  entanglement  entropy  generation  and  identify  the  degrees  of  freedom  responsible  for  it.  We  notice  that  they  transition  from  fermionic  Fock  states  to  meson-like  bound  states  during  jet  fragmentation,  thus  representing  a  direct  analog  of  hadronization  in  real  time.
■590    ▼aSchool  code:  0771.
■650  4▼aTheoretical  physics
■650  4▼aNuclear  physics
■650  4▼aEnergy
■650  4▼aParticle  physics
■653    ▼aQuantum  Chromodynamics
■653    ▼aChiral  magnetic  effect
■653    ▼aElectron-Ion  Collider
■653    ▼aDeep  Inelastic  Scattering
■653    ▼aChirality  distributions
■690    ▼a0756
■690    ▼a0753
■690    ▼a0798
■690    ▼a0791
■71020▼aState  University  of  New  York  at  Stony  Brook▼bPhysics.
■7730  ▼tDissertations  Abstracts  International▼g86-04B.
■790    ▼a0771
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17163285▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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