Bilitewski Thomas, Rey Ana Maria
Department of Physics, Oklahoma State University, Stillwater, Oklahoma 74078, USA.
JILA, National Institute of Standards and Technology and Department of Physics, University of Colorado, Boulder, Colorado 80309, USA.
Phys Rev Lett. 2023 Aug 4;131(5):053001. doi: 10.1103/PhysRevLett.131.053001.
We study the nonequilibrium dynamics of dipoles confined in multiple stacked two-dimensional layers realizing a long-range interacting quantum spin 1/2 XXX model. We demonstrate that strong in-plane interactions can protect a manifold of collective layer dynamics. This then allows us to map the many-body spin dynamics to bosonic models. In a bilayer configuration we show how to engineer the paradigmatic two-mode squeezing Hamiltonian known from quantum optics, resulting in exponential production of entangled pairs and generation of metrologically useful entanglement from initially prepared product states. In multilayer configurations we engineer a bosonic variant of the Kitaev model displaying chiral propagation along the layer direction. Our study illustrates how the control over interactions, lattice geometry, and state preparation in interacting dipolar systems uniquely afforded by AMO platforms such as Rydberg and magnetic atoms, polar molecules, or trapped ions allows for the control over the temporal and spatial propagation of correlations for applications in quantum sensing and quantum simulation.
我们研究了限制在多个堆叠二维层中的偶极子的非平衡动力学，实现了一个长程相互作用的量子自旋1/2 XXX模型。我们证明，强面内相互作用可以保护集体层动力学的一个流形。这进而使我们能够将多体自旋动力学映射到玻色子模型。在双层配置中，我们展示了如何设计量子光学中已知的典型双模压缩哈密顿量，从而导致纠缠对的指数产生，并从初始制备的乘积态产生计量学上有用的纠缠。在多层配置中，我们设计了一个Kitaev模型的玻色子变体，它沿着层方向显示手征传播。我们的研究说明了，诸如里德堡原子、磁性原子、极性分子或捕获离子等原子分子光学（AMO）平台所特有的对相互作用偶极系统中相互作用、晶格几何结构和态制备的控制，如何能够控制关联的时间和空间传播，以用于量子传感和量子模拟应用。
