Rydberg tweezer arrays provide a versatile platform to explore quantum magnets with dipolar XY or van-der-Waals Ising ZZ interactions. Here, we propose a scheme combining dipolar and van-der-Waals interactions between two Rydberg states, where the amplitude of the latter can be greater than that of the former, realizing an extended Hubbard model with long-range tunnelings in optical tweezer arrays. On the triangular lattice with repulsive interactions, we predict the existence of a robust supersolid phase with a critical entropy per particle $S/N \approx 0.19$ accessible in current Rydberg tweezer experiments supported by large-scale quantum Monte Carlo simulations. We further demonstrate the experimental feasibility by identifying pairs of Rydberg states in ${}^{87}$Rb realizing the required interactions. Such a lattice supersolid is long-lived, found over a wide parameter range in an isotropic and flat two-dimensional geometry, and can be realized for 100s of particles allowing one to directly probe the defect-induced picture of supersolids. Its thermodynamical and dynamical properties can hence be studied at a far larger scale than hitherto possible.
Measuring spectral functions of doped magnets with Rydberg tweezer arrays
Université Paris-Saclay, Institut d’Optique Graduate School, CNRS, Laboratoire Charles Fabry(巴黎萨克雷大学,高等光学学院,法国国家科学研究中心,夏尔·法布里实验室);Institute for Theoretical Physics, ETH Zurich(苏黎世联邦理工学院理论物理研究所);JILA and Department of Physics, University of Colorado, Boulder(科罗拉多大学博尔德分校JILA联合研究所和物理系);Center for Theory of Quantum Matter, University of Colorado, Boulder(科罗拉多大学博尔德分校量子物质理论中心);Nanomaterials and Nanotechnology Research Center (CINN-CSIC), Universidad de Oviedo (UO)(阿斯图里亚斯公国奥维耶多大学(UO)材料纳米技术研究中心(CINN-CSIC))
High-resolution spectroscopy and single-photon Rydberg excitation of reconfigurable ytterbium atom tweezer arrays utilizing a metastable state
我们提出了一个实验系统的里德伯镊子阵列与镱(Yb)原子的特点之间的地面${}^1$ S $_0$和亚稳态${}^3$ P $_2$状态的内部状态的操纵,和单光子激发从${}^3$ P $_2$的里德伯态。实验中,Yb原子被囚禁在二维光镊阵列中,通过${}^1$ S $_0 \leftrightarrow {}^3$ P $_1$跃迁的荧光成像进行探测,并通过反馈重排制备出无缺陷的Yb原子阵列。我们成功地进行了单原子的高分辨率${}^1$ S $_0\leftrightarrow {}^3$ P $_2$态光谱,证明了这种超窄跃迁的实用性。我们进一步对单原子进行了从${}^3$ P $_2$到Rydberg态的单光子激发,这是实现有效Rydberg激发的关键。我们还进行了一系列的D状态,包括新观察到的${}^3$ D $_3$状态的复杂的能量结构的系统测量。所开发的系统表明,未来的实验对量子模拟和计算使用单个Yb原子的可行性。
Preparation of hundreds of microscopic atomic ensembles in optical tweezer arrays
我们提出了可编程的二维阵列的微观原子系综组成的400多个网站,几乎均匀的填充和小的原子数波动。我们的方法涉及直接投影的光图案从数字图像处理设备具有高的空间分辨率到一个光学煎饼陷阱作为一个水库。这使得可以在单个步骤中以高占用数量和每个镊子的低功率要求装载大的镊子阵列。每个原子系综被限制为$\sim 1\,μ$ m $^3$,具有从20到200个原子的可控占据和(亚)泊松原子数波动。因此,它们非常适合于量子模拟和实现集体编码的里德堡原子量子比特的大阵列,用于量子信息处理。
Double Supersolid Phase in a Bosonic t-J-V Model with Rydberg Atoms
Fudan University(复旦大学);Shanghai Qizhi Institute and Shanghai Artificial Intelligence Laboratory(上海启智研究所与上海人工智能实验室);Hefei National Laboratory(合肥国家实验室);Westlake University(西湖大学);Institute of Natural Sciences, Westlake Institute for Advanced Study(西湖高等研究院自然科学院);Shanghai Research Center for Quantum Sciences(上海量子科学研究中心)
Strong Spin-Motion Coupling in the Ultrafast Dynamics of Rydberg Atoms
Institute for Molecular Science, National Institutes of Natural Sciences(国立自然科学研究所分子科学研究所);SOKENDAI (The Graduate University for Advanced Studies)(综合研究大学院大学);Department of Basic Science, The University of Tokyo(东京大学基础科学系);Department of Physics, Tokyo University of Science(东京理科大学物理系)
Interplay of localization and topology in disordered dimerized array of Rydberg atoms
Szkoła Doktorska Nauk Ścisłych i Przyrodniczych, Uniwersytet Jagielloński(雅盖隆大学自然科学博士学院);Instytut Fizyki Teoretycznej, Wydział Fizyki, Astronomii i Informatyki Stosowanej, Uniwersytet Jagielloński(雅盖隆大学物理、天文学与应用信息学系理论物理研究所);Mark Kac Complex Systems Research Center, Jagiellonian University in Kraków(克拉科夫雅盖隆大学马克·卡克复杂系统研究中心)
Quantum information scrambling in strongly disordered Rydberg spin systems
Centre Européen des Sciences Quantiques (CESQ-ISIS, UMR7006), Université de Strasbourg et CNRS(斯特拉斯堡大学与法国国家科学研究中心);Physikalisches Institut, Universität Heidelberg(海德堡大学物理研究所);Institut für Festkörpertheorie und -optik, Friedrich-Schiller-Universität Jena(耶拿大学凝聚态理论与光学研究所)
Enhanced Rydberg Blockade through RF-tuned Förster Resonance
James Franck Institute and Department of Physics, The University of Chicago(芝加哥大学詹姆斯·弗兰克研究所和物理系);Department of Applied Physics, Stanford University(斯坦福大学应用物理系);Department of Physics, Stanford University(斯坦福大学物理系)
Quantum many-body dynamics for fermionic t-J model simulated with atom arrays
International Center for Quantum Materials and School of Physics, Peking University(北京大学量子材料中心与物理学院);Hefei National Laboratory(合肥国家实验室);International Quantum Academy, Shenzhen(深圳国际量子学院)
Deconfined quantum criticality on a triangular Rydberg array
University of Innsbruck(因斯布鲁克大学);Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences(奥地利科学院量子光学和量子信息研究所);Harvard University(哈佛大学);Instituto de Física Teórica UAM-CSIC(UAM-CSIC理论物理研究所)