论文标题

模拟手性$ P+ I P $超导体的动态阶段,带有被困的离子磁铁

Simulating dynamical phases of chiral $p+ i p$ superconductors with a trapped ion magnet

论文作者

Shankar, Athreya, Yuzbashyan, Emil A., Gurarie, Victor, Zoller, Peter, Bollinger, John J., Rey, Ana Maria

论文摘要

二维$ p+ i P $超导体和超流体是从电子或中性费米原子具有具有非零角动量的库珀配对中出现的手性行为的系统。他们的认识是一个长期的目标,因为它们为量子计算和内存提供了巨大的潜在效用。但是,到目前为止,在固态系统以及超低量子气体中,它们都避免了实验性观察。在这里,我们建议利用在笔架陷阱中旋转二维捕获式晶体提供的巨大控制,以模拟二维$ P+IP $ superfluids的动态阶段。这是通过将库珀对的存在或不存在映射到在离子电子水平中编码的有效的自旋1/2系统中来完成的。我们展示了如何推断动态阶段的拓扑特性,并讨论了超出平均场校正的作用。更广泛地说,我们的工作打开了使用被困的离子系统来探索拓扑超导性模型的大门,并为在这些平台中生成和操纵Skyrmionic Spin纹理的方式铺平了道路。

Two-dimensional $p+ i p$ superconductors and superfluids are systems that feature chiral behavior emerging from the Cooper pairing of electrons or neutral fermionic atoms with non-zero angular momentum. Their realization has been a longstanding goal because they offer great potential utility for quantum computation and memory. However, they have so far eluded experimental observation both in solid state systems as well as in ultracold quantum gases. Here, we propose to leverage the tremendous control offered by rotating two-dimensional trapped-ion crystals in a Penning trap to simulate the dynamical phases of two-dimensional $p+ip$ superfluids. This is accomplished by mapping the presence or absence of a Cooper pair into an effective spin-1/2 system encoded in the ions' electronic levels. We show how to infer the topological properties of the dynamical phases, and discuss the role of beyond mean-field corrections. More broadly, our work opens the door to use trapped ion systems to explore exotic models of topological superconductivity and also paves the way to generate and manipulate skyrmionic spin textures in these platforms.

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