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Dynamical and Static Aspects of Interacting Particle Systems
Dynamical and Static Aspects of Interacting Particle Systems
Dynamical and Static Aspects of Interacting Particle Systems

Detailed Information

자료유형  
 학위논문 서양
최종처리일시  
20260202103052
ISBN  
9798286427406
DDC  
510
저자명  
Caddeo, Patrizio.
서명/저자  
Dynamical and Static Aspects of Interacting Particle Systems
발행사항  
[Sl] : New York University, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
213 p
주기사항  
Source: Dissertations Abstracts International, Volume: 86-12, Section: B.
주기사항  
Advisor: Lubetzky, Eyal.
학위논문주기  
Thesis (Ph.D.)--New York University, 2025.
초록/해제  
요약In this dissertation, we study two models of interacting particle systems: one from a dynamical perspective, where the system evolves under a specified law and we are concerned with the evolution of the system over time; the other from a static perspective, where we answer questions regarding the typical states of the system.The first is the Noisy Voter model, a dynamical system widely studied in natural and social sciences which bears connections with the stochastic Ising and Potts models. Using duality with a system of coalescing random walks, regularity of the auto-correlation and conductance bounds, we find precise asymptotics for the mixing time of the system and its exact relation to the starting state, on any graph with sub-exponential growth rate of balls.The second model that we consider is the (2+1)D Solid-On-Solid model. The low-temperature SOS model on a box of side L with 0 boundary conditions and a floor at height 0 typically admits ≍ log L nested macroscopic level line loops. The vertical displacement  ρ of the top level line L0 from the bottom side of the box is expected to behave like a variant of a Ferrari-Spohn diffusion on an interval I0 of size L2/3 at the center of the side, after rescaling I0 by L2/3 and ρ by L1/3. Using the Ornstein-Zernike machinery and a known result ruling out pinning of Ising polymers with modified interactions along the boundary, we show that the above rescaling of ρ essentially dominates a Ferrari-Spohn diffusion, and prove a lower bound of the predicted order L1/3.
일반주제명  
Mathematics
일반주제명  
Statistical physics
일반주제명  
High temperature physics
키워드  
Graph theory
키워드  
Interacting particle systems
키워드  
Ising model
키워드  
Random walks
키워드  
Voter model
기타저자  
New York University Mathematics
기본자료저록  
Dissertations Abstracts International. 86-12B.
전자적 위치 및 접속  
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MARC

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■020    ▼a9798286427406
■035    ▼a(MiAaPQ)AAI31931935
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a510
■1001  ▼aCaddeo,  Patrizio.
■24510▼aDynamical  and  Static  Aspects  of  Interacting  Particle  Systems
■260    ▼a[Sl]▼bNew  York  University▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a213  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  86-12,  Section:  B.
■500    ▼aAdvisor:  Lubetzky,  Eyal.
■5021  ▼aThesis  (Ph.D.)--New  York  University,  2025.
■520    ▼aIn  this  dissertation,  we  study  two  models  of  interacting  particle  systems:  one  from  a  dynamical  perspective,  where  the  system  evolves  under  a  specified  law  and  we  are  concerned  with  the  evolution  of  the  system  over  time;  the  other  from  a  static  perspective,  where  we  answer  questions  regarding  the  typical  states  of  the  system.The  first  is  the  Noisy  Voter  model,  a  dynamical  system  widely  studied  in  natural  and  social  sciences  which  bears  connections  with  the  stochastic  Ising  and  Potts  models.  Using  duality  with  a  system  of  coalescing  random  walks,  regularity  of  the  auto-correlation  and  conductance  bounds,  we  find  precise  asymptotics  for  the  mixing  time  of  the  system  and  its  exact  relation  to  the  starting  state,  on  any  graph  with  sub-exponential  growth  rate  of  balls.The  second  model  that  we  consider  is  the  (2+1)D  Solid-On-Solid  model.  The  low-temperature  SOS  model  on  a  box  of  side  L  with  0  boundary  conditions  and  a  floor  at  height  0  typically  admits  ≍  log  L  nested  macroscopic  level  line  loops.  The  vertical  displacement   ρ  of  the  top  level  line  L0  from  the  bottom  side  of  the  box  is  expected  to  behave  like  a  variant  of  a  Ferrari-Spohn  diffusion  on  an  interval  I0  of  size  L2/3  at  the  center  of  the  side,  after  rescaling  I0  by  L2/3  and  ρ  by  L1/3.  Using  the  Ornstein-Zernike  machinery  and  a  known  result  ruling  out  pinning  of  Ising  polymers  with  modified  interactions  along  the  boundary,  we  show  that  the  above  rescaling  of  ρ  essentially  dominates  a  Ferrari-Spohn  diffusion,  and  prove  a  lower  bound  of  the  predicted  order  L1/3.
■590    ▼aSchool  code:  0146.
■650  4▼aMathematics
■650  4▼aStatistical  physics
■650  4▼aHigh  temperature  physics
■653    ▼aGraph  theory
■653    ▼aInteracting  particle  systems
■653    ▼aIsing  model
■653    ▼aRandom  walks
■653    ▼aVoter  model
■690    ▼a0405
■690    ▼a0217
■690    ▼a0597
■71020▼aNew  York  University▼bMathematics.
■7730  ▼tDissertations  Abstracts  International▼g86-12B.
■790    ▼a0146
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17356867▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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