论文标题
拓扑二维浮子晶格
Topological two-dimensional Floquet lattice on a single superconducting qubit
论文作者
论文摘要
以前的理论和实验研究表明，当前的NISQ设备构成了模拟量子模拟的强大平台。借助最先进的量子计算机提供的精致控制水平，我们表明可以进一步实施一类广泛的浮雕汉密尔顿人，或者总体上依赖于时机的汉密尔顿人。然后，我们在IBM量子体验中实现了这些模型的单一版本，并在实验上实现了Bernevig-Hughes-Zhang Chern绝缘子的时间版本。从我们的数据中，我们可以推断出拓扑过渡的存在，从而意识到Martin，Refael和Halperin的拓扑频率转化的早期建议。我们的研究通过量子计算机的多频驱动来研究多体系统时会承诺和局限性。
Previous theoretical and experimental research has shown that current NISQ devices constitute powerful platforms for analogue quantum simulation. With the exquisite level of control offered by state-of-the-art quantum computers, we show that one can go further and implement a wide class of Floquet Hamiltonians, or timedependent Hamiltonians in general. We then implement a single-qubit version of these models in the IBM Quantum Experience and experimentally realize a temporal version of the Bernevig-Hughes-Zhang Chern insulator. From our data we can infer the presence of a topological transition, thus realizing an earlier proposal of topological frequency conversion by Martin, Refael, and Halperin. Our study highlights promises and limitations when studying many-body systems through multi-frequency driving of quantum computers.
