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Twisting, Binding, and Probing Matter Waves in a Rubidium Cavity QED System
Twisting, Binding, and Probing Matter Waves in a Rubidium Cavity QED System
Twisting, Binding, and Probing Matter Waves in a Rubidium Cavity QED System

상세정보

자료유형  
 학위논문 서양
최종처리일시  
20250211151135
ISBN  
9798382716992
DDC  
530
저자명  
Luo, Chengyi.
서명/저자  
Twisting, Binding, and Probing Matter Waves in a Rubidium Cavity QED System
발행사항  
[Sl] : University of Colorado at Boulder, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
160 p
주기사항  
Source: Dissertations Abstracts International, Volume: 85-11, Section: B.
주기사항  
Advisor: Thompson, James K.
학위논문주기  
Thesis (Ph.D.)--University of Colorado at Boulder, 2024.
초록/해제  
요약In this thesis work, I have explored a novel platform for quantum metrology and many-body physics by realizing matter-wave interferometric controls in a high finesse cavity. By correlating the internal states of the atoms to the external degrees of freedom, we demonstrated direct entanglement generation on the momentum states of the atoms with two distinct approaches, quantum non-demolition measurement and one-axis twisting dynamics. After injecting the squeezed momentum states into a matter-wave interferometer, we realized an entanglement-enhanced matter-wave interferometer for the first time. Decoupling the momentum states from the internal states with all atoms in the same atomic spin state, we realized a novel cavity-mediated collective momentum-exchange interaction in which pairs of atoms swap their momenta by exchanging photons through the cavity. The momentum-exchange interaction leads to an observed all-to-all Ising-like interaction in a matter-wave interferometer, which is useful for entanglement generation. A many-body energy gap also emerges, effectively binding interferometer matter-wave packets together to suppress Doppler dephasing with analogies to Mossbauer spectroscopy. In the same system, by adding new laser frequency control for driving pair creation/annihilation processes, we realized Hamiltonian engineering of collective XYZ spin models between two momentum states and the first demonstration of the long-sought two-axis counter-twisting dynamics.The entanglement-enhanced matter-wave interferometer experiment shed new light on improving future atom interferometers by reducing the fundamental quantum source of imprecision. The momentum-exchange interaction provides new options for interacting momentum states enabled by the cavity. The Hamiltonian engineering realized here not only enables new dynamics for entanglement generation but also offers new possibilities for quantum simulation with atomic momentum states. All these opportunities arise from coupling the atoms to a high-finesse cavity, known as cavity quantum electrodynamics systems. Combining the matter-wave interferometric control and cavity QED, our system provides a new platform for the study of quantum metrology, quantum simulation and many-body physics with qubits based on atomic momentum states.
일반주제명  
Physics
일반주제명  
Electromagnetics
일반주제명  
Quantum physics
일반주제명  
Computational physics
키워드  
Matter-wave interferometric controls
키워드  
Entanglement generation
키워드  
Mossbauer spectroscopy
키워드  
Quantum metrology
키워드  
Atom interferometers
기타저자  
University of Colorado at Boulder Physics
기본자료저록  
Dissertations Abstracts International. 85-11B.
전자적 위치 및 접속  
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MARC

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■035    ▼a(MiAaPQ)AAI31148287
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a530
■1001  ▼aLuo,  Chengyi.▼0(orcid)0000000294705815
■24510▼aTwisting,  Binding,  and  Probing  Matter  Waves  in  a  Rubidium  Cavity  QED  System
■260    ▼a[Sl]▼bUniversity  of  Colorado  at  Boulder▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a160  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  85-11,  Section:  B.
■500    ▼aAdvisor:  Thompson,  James  K.
■5021  ▼aThesis  (Ph.D.)--University  of  Colorado  at  Boulder,  2024.
■520    ▼aIn  this  thesis  work,  I  have  explored  a  novel  platform  for  quantum  metrology  and  many-body  physics  by  realizing  matter-wave  interferometric  controls  in  a  high  finesse  cavity.  By  correlating  the  internal  states  of  the  atoms  to  the  external  degrees  of  freedom,  we  demonstrated  direct  entanglement  generation  on  the  momentum  states  of  the  atoms  with  two  distinct  approaches,  quantum  non-demolition  measurement  and  one-axis  twisting  dynamics.  After  injecting  the  squeezed  momentum  states  into  a  matter-wave  interferometer,  we  realized  an  entanglement-enhanced  matter-wave  interferometer  for  the  first  time. Decoupling  the  momentum  states  from  the  internal  states  with  all  atoms  in  the  same  atomic  spin  state,  we  realized  a  novel  cavity-mediated  collective  momentum-exchange  interaction  in  which  pairs  of  atoms  swap  their  momenta  by  exchanging  photons  through  the  cavity.  The  momentum-exchange  interaction  leads  to  an  observed  all-to-all  Ising-like  interaction  in  a  matter-wave  interferometer,  which  is  useful  for  entanglement  generation.  A  many-body  energy  gap  also  emerges,  effectively  binding  interferometer  matter-wave  packets  together  to  suppress  Doppler  dephasing  with  analogies  to  Mossbauer  spectroscopy.  In  the  same  system,  by  adding  new  laser  frequency  control  for  driving  pair  creation/annihilation  processes,  we  realized  Hamiltonian  engineering  of  collective  XYZ  spin  models  between  two  momentum  states  and  the  first  demonstration  of  the  long-sought  two-axis  counter-twisting  dynamics.The  entanglement-enhanced  matter-wave  interferometer  experiment  shed  new  light  on  improving  future  atom  interferometers  by  reducing  the  fundamental  quantum  source  of  imprecision.  The  momentum-exchange  interaction  provides  new  options  for  interacting  momentum  states  enabled  by  the  cavity.  The  Hamiltonian  engineering  realized  here  not  only  enables  new  dynamics  for  entanglement  generation  but  also  offers  new  possibilities  for  quantum  simulation  with  atomic  momentum  states.  All  these  opportunities  arise  from  coupling  the  atoms  to  a  high-finesse  cavity,  known  as  cavity  quantum  electrodynamics  systems.  Combining  the  matter-wave  interferometric  control  and  cavity  QED,  our  system  provides  a  new  platform  for  the  study  of  quantum  metrology,  quantum  simulation  and  many-body  physics  with  qubits  based  on  atomic  momentum  states.
■590    ▼aSchool  code:  0051.
■650  4▼aPhysics
■650  4▼aElectromagnetics
■650  4▼aQuantum  physics
■650  4▼aComputational  physics
■653    ▼aMatter-wave  interferometric  controls
■653    ▼aEntanglement  generation
■653    ▼aMossbauer  spectroscopy
■653    ▼aQuantum  metrology
■653    ▼aAtom  interferometers
■690    ▼a0605
■690    ▼a0599
■690    ▼a0216
■690    ▼a0607
■71020▼aUniversity  of  Colorado  at  Boulder▼bPhysics.
■7730  ▼tDissertations  Abstracts  International▼g85-11B.
■790    ▼a0051
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17160914▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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