用超导量子线路对具有拓扑保护基态自旋系统的量子模拟
Quantum emulation of a spin system with topologically protected ground states using superconducting quantum circuits
摘要：
利用超导量子线路元件，我们提出了一种方法来实验构建一个Kitaev晶格，这是一个各向异性自旋模型的蜂窝晶格上的三种类型的最近邻相互作用和具有拓扑保护的基态。我们研究了两个特定的参数制度，以证明涡旋和键态激发。我们的建议概述了一个实验可实现的人工多体系统，具有异国情调的拓扑性质。
英文摘要：
Using superconducting quantum circuit elements, we propose an approach to experimentally construct a Kitaev lattice, which is an anisotropic spin model on a honeycomb lattice with three types of nearest-neighbor interactions and having topologically protected ground states. We study two particular parameter regimes to demonstrate both vortex and bond-state excitations. Our proposal outlines an experimentally realizable artificial many-body system that exhibits exotic topological properties.
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