论文标题
Qubit旋转冰
Qubit spin ice
论文作者
论文摘要
人工旋转台面是可以设计的沮丧的旋转系统，其中几何和拓扑的微调允许在组成级别设计和表征异国情调的新兴现象。在这里，我们报告了在超导Qubits的晶格中实现旋转冰的实现。与常规的人工旋冰不同，我们的系统因量子和热波动而无序。冰规则经典地描述了基态，我们对导致库仑相的脆弱的退化点进行了控制。固定单个旋转的能力使我们能够在二维中展示高斯定律，以实现出现的有效单孔。所展示的量子控制奠定了对拓扑保护的人造量子自旋液体的潜在研究的基础。
Artificial spin ices are frustrated spin systems that can be engineered, wherein fine tuning of geometry and topology has allowed the design and characterization of exotic emergent phenomena at the constituent level. Here we report a realization of spin ice in a lattice of superconducting qubits. Unlike conventional artificial spin ice, our system is disordered by both quantum and thermal fluctuations. The ground state is classically described by the ice rule, and we achieve control over a fragile degeneracy point leading to a Coulomb phase. The ability to pin individual spins allows us to demonstrate Gauss's law for emergent effective monopoles in two dimensions. The demonstrated qubit control lays the groundwork for potential future study of topologically protected artificial quantum spin liquids.
