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Probing and Controlling Ultracold Polar Molecules in a Quantum Gas Microscope
Probing and Controlling Ultracold Polar Molecules in a Quantum Gas Microscope
Detailed Information
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202103518
- ISBN
- 9798280751026
- DDC
- 530
- 서명/저자
- Probing and Controlling Ultracold Polar Molecules in a Quantum Gas Microscope
- 발행사항
- [Sl] : Princeton University, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 239 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-12, Section: B.
- 주기사항
- Advisor: Bakr, Waseem S.
- 학위논문주기
- Thesis (Ph.D.)--Princeton University, 2025.
- 초록/해제
- 요약Ultracold polar molecules are of great interest for the quantum simulation of many-body physics due to their strong dipolar interactions, large set of internal states, and favorable coherence to interaction time ratios. They have been proposed, for example, as a platform to realize quantum spin liquids and to explore the phase diagrams of quantum magnets. However, the complexity of molecules that lends them many appealing features for studying many-body physics also makes them challenging to probe and control. In this thesis, we present our work advancing the capabilities of the molecular quantum simulation platform by developing single lattice site detection of polar molecules and working to combine that technology with high phase-space density molecular gases. We first discuss the creation of a quantum gas microscope for sodium-rubidium (NaRb) molecules, enabling for the first time the measurement of site-resolved correlations between individual molecules in an optical lattice. As an initial demonstration, we observe Hanbury Brown-Twiss correlations between non-interacting molecules arising from their quantum statistics. The microscope allows for the measurement of a high visibility interference pattern despite a correlation peak width of less than one lattice site. In a second experiment, we transfer the molecules to their absolute ground state to probe correlation dynamics in lattice spin models. We show the flexibility of our platform by tuning both the spatial and spin anisotropy of the Hamiltonian, the latter representing the first application of Floquet engineering to polar molecules. In the second part of the thesis, we describe current efforts toward achieving a high phase-space density gas of polar NaRb molecules in our microscope apparatus. This has necessitated the implementation of collisional shielding mechanisms to address universal loss at short intermolecular distances as well as the exploration of protocols to increase our molecule number. Together with rapid advances by other groups in the field, this work holds promise for creating close to unity filling optical lattices of polar molecules in the near future.
- 일반주제명
- Physics
- 일반주제명
- Quantum physics
- 일반주제명
- Atomic physics
- 일반주제명
- Molecular physics
- 키워드
- Molecules
- 키워드
- Ultracold gases
- 키워드
- Sodium-rubidium
- 기타저자
- Princeton University Physics
- 기본자료저록
- Dissertations Abstracts International. 86-12B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■006m o d
■007cr#unu||||||||
■020 ▼a9798280751026
■035 ▼a(MiAaPQ)AAI32038454
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a530
■1001 ▼aRosenberg, Jason Scott.▼0(orcid)0000-0003-3410-5196
■24510▼aProbing and Controlling Ultracold Polar Molecules in a Quantum Gas Microscope
■260 ▼a[Sl]▼bPrinceton University▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a239 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-12, Section: B.
■500 ▼aAdvisor: Bakr, Waseem S.
■5021 ▼aThesis (Ph.D.)--Princeton University, 2025.
■520 ▼aUltracold polar molecules are of great interest for the quantum simulation of many-body physics due to their strong dipolar interactions, large set of internal states, and favorable coherence to interaction time ratios. They have been proposed, for example, as a platform to realize quantum spin liquids and to explore the phase diagrams of quantum magnets. However, the complexity of molecules that lends them many appealing features for studying many-body physics also makes them challenging to probe and control. In this thesis, we present our work advancing the capabilities of the molecular quantum simulation platform by developing single lattice site detection of polar molecules and working to combine that technology with high phase-space density molecular gases. We first discuss the creation of a quantum gas microscope for sodium-rubidium (NaRb) molecules, enabling for the first time the measurement of site-resolved correlations between individual molecules in an optical lattice. As an initial demonstration, we observe Hanbury Brown-Twiss correlations between non-interacting molecules arising from their quantum statistics. The microscope allows for the measurement of a high visibility interference pattern despite a correlation peak width of less than one lattice site. In a second experiment, we transfer the molecules to their absolute ground state to probe correlation dynamics in lattice spin models. We show the flexibility of our platform by tuning both the spatial and spin anisotropy of the Hamiltonian, the latter representing the first application of Floquet engineering to polar molecules. In the second part of the thesis, we describe current efforts toward achieving a high phase-space density gas of polar NaRb molecules in our microscope apparatus. This has necessitated the implementation of collisional shielding mechanisms to address universal loss at short intermolecular distances as well as the exploration of protocols to increase our molecule number. Together with rapid advances by other groups in the field, this work holds promise for creating close to unity filling optical lattices of polar molecules in the near future.
■590 ▼aSchool code: 0181.
■650 4▼aPhysics
■650 4▼aQuantum physics
■650 4▼aAtomic physics
■650 4▼aMolecular physics
■653 ▼aMolecules
■653 ▼aQuantum gas microscope
■653 ▼aQuantum simulation
■653 ▼aUltracold gases
■653 ▼aSodium-rubidium
■690 ▼a0605
■690 ▼a0599
■690 ▼a0748
■690 ▼a0609
■71020▼aPrinceton University▼bPhysics.
■7730 ▼tDissertations Abstracts International▼g86-12B.
■790 ▼a0181
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17357479▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
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