论文标题
由远程波导介导的相互作用驱动的量子混乱
Quantum chaos driven by long-range waveguide-mediated interactions
论文作者
论文摘要
我们研究了一对光子的理论上量子状态，这些光子与波导中有限的两级原子的周期性阵列相互作用。我们的计算揭示了两极分化的特征状态，在真实空间中具有高度不规则的波功能。这表明伯特·安萨兹（Bethe Ansatz）的崩溃和量子混乱的发作与盒子中两个相互作用的玻色子的常规可集成问题形成鲜明对比。我们将原子之间的远程波导介导的耦合确定为混乱和不整合性的关键成分。我们的结果为多体量子系统中的顺序，混乱和定位之间的相互作用提供了新的见解，可以在波导量子电动力学的最新设置中进行测试。
We study theoretically quantum states of a pair of photons interacting with a finite periodic array of two-level atoms in a waveguide. Our calculation reveals two-polariton eigenstates that have a highly irregular wave-function in real space. This indicates the Bethe ansatz breakdown and the onset of quantum chaos, in stark contrast to the conventional integrable problem of two interacting bosons in a box. We identify the long-range waveguide-mediated coupling between the atoms as the key ingredient of chaos and nonintegrability. Our results provide new insights in the interplay between order, chaos and localization in many-body quantum systems and can be tested in state-of-the-art setups of waveguide quantum electrodynamics.
