Coherent Spin Dynamics in 2D Arrays of Rydberg Atoms

二维里德堡原子阵列中的相干自旋动力学

• 批准号: 316211382
• 负责人: Professor Dr. Gerhard Birkl
• 金额: --
• 依托单位: Arbeitsgruppe Atome - Photone - Quanten
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2016
• 资助国家: 德国
• 起止时间: 2015-12-31 至 2023-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/316211382?language=en
• 关键词: Coherent; Spin; Dynamics; 2D; Arrays

This project is aiming towards establishing a new paradigm forRydberg many-body physics. It draws its strength from the uniquefeatures of our single-atom based many-body Rydberg architecture,which has not been available in other implementations so far: We willplace well defined sets of up to a few hundred single rubidium atomsat exactly defined locations in re-configurable 2D and layered 3Dgeometries, based on dipole trap arrays with single-siteaddressability. Individual atoms in the array can be excited to aRydberg state by an optical two-photon transition. Simultaneously,other Rydberg states are accessible by applying a microwave field incombination with an addressing light field. This unique platform willenable us to exploit van-der-Waals type interactions between atoms inthe same Rydberg state as well as resonant dipolar interactionsbetween atoms in two different Rydberg states. Full control of thegeometry in up to three dimensions, interaction parameters, and atomnumber allows us to engineer effective spin-1/2 Hamiltonians withIsing-type interactions (van der Waals) and XY-type interactions(dipolar). During the temporal evolution of the system we maintain ahigh level of control of the internal and external states of the atoms.This enables us to gain novel insight in the dynamical behavior of thequantum many-body system.

该项目旨在为里德堡多体物理学建立一个新的范式。它从我们基于单原子的多体Rydberg架构的独特功能中汲取力量，这在其他实现中还没有：我们将在可重新配置的2D和分层3D几何结构中精确定义的位置放置定义良好的多达几百个单个铷原子的集合，基于具有单siteaddressability的偶极阱阵列。阵列中的单个原子可以通过光学双光子跃迁被激发到里德堡态。同时，通过施加微波场与寻址光场的组合，可以达到其他里德堡态。这个独特的平台将使我们能够利用原子之间的范德华力类型的相互作用在同一个里德伯态以及共振偶极相互作用在两个不同的里德伯态原子之间。完全控制thegeometry在多达三个维度，相互作用参数，原子数允许我们工程师有效的自旋1/2哈密顿与伊辛型相互作用（货车德瓦尔斯）和XY型相互作用（偶极）。在系统的时间演化过程中，我们保持了对原子内外态的高度控制，这使我们对量子多体系统的动力学行为有了新的认识.