论文标题
在耦合腔阵列中的原子纠缠的产生和分布
Generation and distribution of atomic entanglement in coupled-cavity arrays
论文作者
论文摘要
我们通过单激发部门中的Jaynes-Cummings-Hubbard（JCH）Hamiltonian研究了一个1D耦合式腔阵列中的纠缠动力学，每个腔阵列都包含两个级别的原子。该模型具有丰富的各种动力学制度，可以利用纠缠控制。该协议基于将激发原子设置在基态之上，并在哈密顿量的自然动力下进化。在这里，我们关注原子对之间的同意及其与原子场相关性和阵列的结构的关系。我们表明，仅通过明智地调整原子腔耦合强度，就可以操纵成对纠缠的扩展和分布模式。我们的工作提供了关于单启示JCH Hamiltonian的机械的综合帐户，并有助于混合轻型量子网络的设计。
We study the dynamics of entanglement in a 1D coupled-cavity array, each cavity containing a two-level atom, via the Jaynes-Cummings-Hubbard (JCH) Hamiltonian in the single-excitation sector. The model features a rich variety of dynamical regimes that can be harnessed for entanglement control. The protocol is based on setting an excited atom above the ground state and further letting it evolve following the natural dynamics of the Hamiltonian. Here we focus on the concurrence between pairs of atoms and its relation to atom-field correlations and the structure of the array. We show that the extension and distribution pattern of pairwise entanglement can be manipulated through a judicious tuning of the atom-cavity coupling strength only. Our work offers a comprehensive account over the machinery of the single-excitation JCH Hamiltonian as well as contributes to the design of hybrid light-matter quantum networks.
