Cold Rydberg atoms in optical traps: probing the electric field of individual quantum objects

光陷阱中的冷里德伯原子：探测单个量子物体的电场

• 批准号: EP/F031130/1
• 负责人: Silvia Bergamini
• 金额: $ 59.54万
• 依托单位: The Open University
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2008
• 资助国家: 英国
• 起止时间: 2008 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FF031130%2F1
• 关键词: Cold; Rydberg; atoms; optical; traps

The quest for understanding and controlling the interaction of individual quantum objects is one of the most challenging in modern physics. Recent years have seen a rapid growth of interest in how to engineer interactions between ultra-coldatoms and ions due to a range of possible new applications, particularly in the fields of quantum information, many-body systems and cold chemistry.Ultra-cold Rydberg atoms offer a unique experimental tool to study and control interactions amongst atomic systems since they appear to be frozen , moving negligibly during the time scale of experimental interest. In a cloud of ultracoldRydberg atoms, the dynamics are then determined by Rydberg-Rydberg interactions only. These interactions can be easily tuned, by controlling the electronic state (principal quantum number), external electric fields or even the interatomic distance.In this project, novel experiments will be performed which are oriented towards studying the interactions of small clouds of atoms stored in micrometer-sized dipole traps, when a controllable number of atoms (one or more) in each cloudare excited to a Rydberg state. Exploiting the high sensitivity of Rydberg atoms to electric fields, the ultimate goal is to use a single excited atom in an optical trap to probe the electric field of another Rydberg atom or arrays of Rydbergatoms.

理解和控制单个量子物体之间的相互作用是现代物理学中最具挑战性的问题之一。近年来，由于一系列可能的新应用，特别是在量子信息、多体系统和冷化学领域，人们对如何设计超冷原子与离子之间的相互作用的兴趣迅速增长。超冷里德伯原子提供了一种独特的实验工具来研究和控制原子系统之间的相互作用，因为它们看起来是冻结的，在实验兴趣的时间尺度上移动可以忽略不计。在一个由超冷里德伯原子组成的云中，动力学仅由里德伯-里德伯相互作用决定。通过控制电子态（主量子数）、外电场甚至原子间距离，可以很容易地调节这些相互作用。在这个项目中，将进行新的实验，以研究存储在微米大小的偶极阱中的小原子云的相互作用，当每个云中的可控数量的原子（一个或多个）被激发到里德伯态时。利用里德伯原子对电场的高灵敏度，最终目标是在光学陷阱中使用单个激发原子来探测另一个里德伯原子或里德伯原子阵列的电场。

项目成果

Bilayers of Rydberg atoms as a quantum simulator for unconventional superconductors

里德伯原子双层作为非常规超导体的量子模拟器

• DOI: 10.48550/arxiv.1111.5594
• 发表时间: 2011
• 作者: Hague J

Quantum simulation of electron-phonon interactions in strongly deformable materials

• DOI: 10.1088/1367-2630/14/3/033019
• 发表时间: 2012-03-13
• 期刊: NEW JOURNAL OF PHYSICS
• 影响因子: 3.3
• 作者: Hague, J. P.;MacCormick, C.
• 通讯作者: MacCormick, C.

Measurement of the electric dipole moments for transitions to rubidium Rydberg states via Autler-Townes splitting

通过奥特勒-汤斯分裂测量铷里德堡态跃迁的电偶极矩

• DOI: 10.48550/arxiv.1103.0109
• 发表时间: 2011
• 作者: Piotrowicz M

Jaynes-Cummings dynamics in mesoscopic ensembles of Rydberg-blockaded atoms

• DOI: 10.1103/physreva.90.043413
• 发表时间: 2014-04
• 期刊: Physical Review A
• 影响因子: 2.9
• 作者: I. Beterov;T. Andrijauskas;D. Tretyakov;V. Entin;E. Yakshina;I. Ryabtsev;S. Bergamini

Blueprint for fault-tolerant quantum computation with Rydberg atoms

• DOI: 10.1103/physreva.96.052320
• 发表时间: 2017-07
• 期刊: Physical Review A
• 影响因子: 2.9
• 作者: J. Auger;S. Bergamini;D. Browne