Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences, A-6020 Innsbruck, Austria.
Phys Rev Lett. 2013 Sep 13;111(11):110504. doi: 10.1103/PhysRevLett.111.110504.
We describe a superconducting-circuit lattice design for the implementation and simulation of dynamical lattice gauge theories. We illustrate our proposal by analyzing a one-dimensional U(1) quantum-link model, where superconducting qubits play the role of matter fields on the lattice sites and the gauge fields are represented by two coupled microwave resonators on each link between neighboring sites. A detailed analysis of a minimal experimental protocol for probing the physics related to string breaking effects shows that, despite the presence of decoherence in these systems, distinctive phenomena from condensed-matter and high-energy physics can be visualized with state-of-the-art technology in small superconducting-circuit arrays.
我们描述了一种超导电路格设计，用于实现和模拟动态格规范理论。我们通过分析一个一维 U(1)量子链路模型来说明我们的建议，其中超导量子位在格点上扮演物质场的角色，而规范场由相邻格点之间的每个链路的两个耦合微波谐振器表示。对探测与字符串断裂效应相关的物理现象的最小实验方案的详细分析表明，尽管这些系统存在退相干，但具有凝聚态和高能物理特色的独特现象可以用小型超导电路阵列中的现有技术来可视化。
