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Improved Quantum Control of Two-Dimensional Ion Crystals in a Penning Trap
Improved Quantum Control of Two-Dimensional Ion Crystals in a Penning Trap
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202105304
- ISBN
- 9798273302068
- DDC
- 530
- 서명/저자
- Improved Quantum Control of Two-Dimensional Ion Crystals in a Penning Trap
- 발행사항
- [Sl] : University of Colorado at Boulder, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 212 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-07, Section: B.
- 주기사항
- Advisor: Rey, Ana Maria;Bollinger, John.
- 학위논문주기
- Thesis (Ph.D.)--University of Colorado at Boulder, 2025.
- 초록/해제
- 요약Trapped ions are a platform offering exquisite quantum control of small systems, placing them at the frontier of quantum metrology, simulation, and computation. This thesis describes advances in scaling to large ion numbers using two-dimensional ion crystals confined in a Penning trap. Global control of the axial collective center-of-mass (COM) motional mode, coupled to each ion's spin degree of freedom, enabled a quantum simulation of the Dicke model-a fundamental model of quantum optics exhibiting dynamical phase transitions, entanglement generation, and chaotic dynamics. The Penning trap platform allows exploration in a chaotic regime where the collective bosonic degree of freedom participates strongly in the dynamics while remaining highly coherent with minimal dissipation. Moving beyond global interactions, a novel addressing scheme is demonstrated using a deformable mirror to impart patterned spin rotations onto the ion crystal, which rotates at ~180 kHz. Using this deformable mirror has also allowed temperature diagnostics of previously poorly characterized in-plane modes in the rotating frame of the crystal. These temperature diagnostics have allowed detailed study of a new cooling technique for the in-plane modes involving a driven coupling between in-plane modes called axialization. Previous studies of axialization in Penning traps have been limited to small systems and coupling between COM modes of motion, with unique previously unexplored dynamics occurring in larger systems. This coupling has allowed roughly an order-of-magnitude reduction in the in-plane temperature, a fundamental issue limiting the stability of the axial modes.
- 일반주제명
- Physics
- 일반주제명
- Atomic physics
- 일반주제명
- Quantum physics
- 키워드
- Penning trap
- 키워드
- Quantum sensing
- 키워드
- Small systems
- 기타저자
- University of Colorado at Boulder Physics
- 기본자료저록
- Dissertations Abstracts International. 87-07B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520260202105304
■006m o d
■007cr#unu||||||||
■020 ▼a9798273302068
■035 ▼a(MiAaPQ)AAI32282841
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a530
■1001 ▼aBullock, Bryce B.
■24510▼aImproved Quantum Control of Two-Dimensional Ion Crystals in a Penning Trap
■260 ▼a[Sl]▼bUniversity of Colorado at Boulder▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a212 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-07, Section: B.
■500 ▼aAdvisor: Rey, Ana Maria;Bollinger, John.
■5021 ▼aThesis (Ph.D.)--University of Colorado at Boulder, 2025.
■520 ▼aTrapped ions are a platform offering exquisite quantum control of small systems, placing them at the frontier of quantum metrology, simulation, and computation. This thesis describes advances in scaling to large ion numbers using two-dimensional ion crystals confined in a Penning trap. Global control of the axial collective center-of-mass (COM) motional mode, coupled to each ion's spin degree of freedom, enabled a quantum simulation of the Dicke model-a fundamental model of quantum optics exhibiting dynamical phase transitions, entanglement generation, and chaotic dynamics. The Penning trap platform allows exploration in a chaotic regime where the collective bosonic degree of freedom participates strongly in the dynamics while remaining highly coherent with minimal dissipation. Moving beyond global interactions, a novel addressing scheme is demonstrated using a deformable mirror to impart patterned spin rotations onto the ion crystal, which rotates at ~180 kHz. Using this deformable mirror has also allowed temperature diagnostics of previously poorly characterized in-plane modes in the rotating frame of the crystal. These temperature diagnostics have allowed detailed study of a new cooling technique for the in-plane modes involving a driven coupling between in-plane modes called axialization. Previous studies of axialization in Penning traps have been limited to small systems and coupling between COM modes of motion, with unique previously unexplored dynamics occurring in larger systems. This coupling has allowed roughly an order-of-magnitude reduction in the in-plane temperature, a fundamental issue limiting the stability of the axial modes.
■590 ▼aSchool code: 0051.
■650 4▼aPhysics
■650 4▼aAtomic physics
■650 4▼aQuantum physics
■653 ▼aPenning trap
■653 ▼aQuantum sensing
■653 ▼aQuantum simulation
■653 ▼aTwo-dimensional ion crystals
■653 ▼aSmall systems
■690 ▼a0605
■690 ▼a0748
■690 ▼a0599
■71020▼aUniversity of Colorado at Boulder▼bPhysics.
■7730 ▼tDissertations Abstracts International▼g87-07B.
■790 ▼a0051
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360104▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
