Floquet engineering flat bands for bosonic fractional quantum Hall with superconducting circuits
Floquet engineering flat bands for bosonic fractional quantum Hall with superconducting circuits
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DOI：
10.1103/physrevb.104.035427
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发表时间：
2020-09
影响因子：
3.7
通讯作者：
R. Ge;M. Kolodrubetz
中科院分区：
文献类型：
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作者：
R. Ge;M. Kolodrubetz
寻求实现具有拓扑序的物质新相是一项重要的追求，对强相关物理和量子信息具有重要意义。利用超导电路等最先进的人工量子系统相干控制的思想，我们提出了一项提案，通过使用交错通量模式创建近乎平坦的拓扑带，在小晶格上实现玻色分数量子霍尔物理。使用少至 24 个晶格位点（两个光子），可以通过近乎完美的量化来观察通过电荷泵进行的分级指纹。我们建议使用超导量子位的有限晶格来实现，在三角形和正方形晶格上都具有圆柱形连接。
The quest to realize novel phases of matter with topological order is an important pursuit with implications for strongly correlated physics and quantum information. Utilizing ideas from state-of-the-art coherent control of artificial quantum systems such as superconducting circuits, we present a proposal to realize bosonic fractional quantum Hall physics on small lattices by creating nearly flat topological bands using staggered flux patterns. Fingerprints of fractionalization through charge pumping can be observed with nearly perfect quantization using as few as 24 lattice sites (two photons). We suggest an implementation using a finite lattice of superconducting qubits with cylindrical connectivity on both triangular and square lattices.