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Cold Atoms in Dynamic Quasiperiodic Optical Lattices.
Cold Atoms in Dynamic Quasiperiodic Optical Lattices.

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자료유형  
 학위논문
Control Number  
0017160687
International Standard Book Number  
9798384033646
Dewey Decimal Classification Number  
539
Main Entry-Personal Name  
Dotti, Peter.
Publication, Distribution, etc. (Imprint  
[S.l.] : University of California, Santa Barbara., 2024
Publication, Distribution, etc. (Imprint  
Ann Arbor : ProQuest Dissertations & Theses, 2024
Physical Description  
238 p.
General Note  
Source: Dissertations Abstracts International, Volume: 86-03, Section: B.
General Note  
Advisor: Weld, David.
Dissertation Note  
Thesis (Ph.D.)--University of California, Santa Barbara, 2024.
Summary, Etc.  
요약It is well known that quasiperiodicity in the Aubry-Andre-Harper (AAH) model produces ´ a localized phase of the system when the on-site potential term is sufficiently large. It is also the generic experience of an experimentalist that externally applied time-periodic potentials will add energy to a quantum system, resulting in heating. However, contrary to this intuition, dynamic localization occurs in lattice potentials of particles exposed to a time-periodic force of appropriate amplitude. The drive in this case reduces the rate of spreading and at certain amplitudes arrests the spread of the particles entirely. This is well established theoretically and has been observed experimentally.In this thesis, we present results of experimental and theoretical investigation into the effects of a number of dynamic generalizations of the AAH model. We explore the effect of applying a time-periodic external potential (chapter 5), as well as the effect of making the potential term in the AAH model periodically pulsed, referred to as the kicked AAH model (chapter 4), and the effect of periodically translating the potential in the AAH model relative to the underlying tight-binding lattice in two different frequency regimes (chapter 4). We describe the not obvious consequences of this incorporation of dynamics into experimental systems of ultracold atoms in quasiperiodic potentials.
Subject Added Entry-Topical Term  
Atomic physics.
Subject Added Entry-Topical Term  
Condensed matter physics.
Subject Added Entry-Topical Term  
Physics.
Subject Added Entry-Topical Term  
Optics.
Index Term-Uncontrolled  
Aubry-Andre-Harper
Index Term-Uncontrolled  
Floquet
Index Term-Uncontrolled  
Optical lattice
Index Term-Uncontrolled  
Strontium
Index Term-Uncontrolled  
Quantum system
Added Entry-Corporate Name  
University of California, Santa Barbara Physics
Host Item Entry  
Dissertations Abstracts International. 86-03B.
Electronic Location and Access  
로그인을 한후 보실 수 있는 자료입니다.
Control Number  
joongbu:658083

MARC

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■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a539
■1001  ▼aDotti,  Peter.
■24510▼aCold  Atoms  in  Dynamic  Quasiperiodic  Optical  Lattices.
■260    ▼a[S.l.]▼bUniversity  of  California,  Santa  Barbara.  ▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a238  p.
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  86-03,  Section:  B.
■500    ▼aAdvisor:  Weld,  David.
■5021  ▼aThesis  (Ph.D.)--University  of  California,  Santa  Barbara,  2024.
■520    ▼aIt  is  well  known  that  quasiperiodicity  in  the  Aubry-Andre-Harper  (AAH)  model  produces  ´  a  localized  phase  of  the  system  when  the  on-site  potential  term  is  sufficiently  large.  It  is  also  the  generic  experience  of  an  experimentalist  that  externally  applied  time-periodic  potentials  will  add  energy  to  a  quantum  system,  resulting  in  heating.  However,  contrary  to  this  intuition,  dynamic  localization  occurs  in  lattice  potentials  of  particles  exposed  to  a  time-periodic  force  of  appropriate  amplitude.  The  drive  in  this  case  reduces  the  rate  of  spreading  and  at  certain  amplitudes  arrests  the  spread  of  the  particles  entirely.  This  is  well  established  theoretically  and  has  been  observed  experimentally.In  this  thesis,  we  present  results  of  experimental  and  theoretical  investigation  into  the  effects  of  a  number  of  dynamic  generalizations  of  the  AAH  model.  We  explore  the  effect  of  applying  a  time-periodic  external  potential  (chapter  5),  as  well  as  the  effect  of  making  the  potential  term  in  the  AAH  model  periodically  pulsed,  referred  to  as  the  kicked  AAH  model  (chapter  4),  and  the  effect  of  periodically  translating  the  potential  in  the  AAH  model  relative  to  the  underlying  tight-binding  lattice  in  two  different  frequency  regimes  (chapter  4).  We  describe  the  not  obvious  consequences  of  this  incorporation  of  dynamics  into  experimental  systems  of  ultracold  atoms  in  quasiperiodic  potentials.
■590    ▼aSchool  code:  0035.
■650  4▼aAtomic  physics.
■650  4▼aCondensed  matter  physics.
■650  4▼aPhysics.
■650  4▼aOptics.
■653    ▼aAubry-Andre-Harper
■653    ▼aFloquet
■653    ▼aOptical  lattice
■653    ▼aStrontium
■653    ▼aQuantum  system
■690    ▼a0748
■690    ▼a0611
■690    ▼a0752
■690    ▼a0605
■71020▼aUniversity  of  California,  Santa  Barbara▼bPhysics.
■7730  ▼tDissertations  Abstracts  International▼g86-03B.
■790    ▼a0035
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17160687▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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