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| DOI | 10.1126/science.abe2824 |
| Qubit spin ice | |
| Andrew D. King; Cristiano Nisoli; Edward D. Dahl; Gabriel Poulin-Lamarre; Alejandro Lopez-Bezanilla | |
| 2021-07-30 | |
| 发表期刊 | Science
 |
| 出版年 | 2021 |
| 英文摘要 | Spin ices, magnetic systems in which local spins respect the so-called ice rules, can occur in natural materials or be engineered in patterned arrays. King et al. used superconducting qubits to implement a two-dimensional artificial spin ice. By changing the strength and ratio of spin couplings, the researchers were able to access a variety of ground states. Arranging the boundary spins in an antiferromagnetic configuration and then flipping one of those spins generated a magnetic monopole in the system's interior. Science , abe2824, this issue p. [576][1] Artificial spin ices are frustrated spin systems that can be engineered, in which 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 achieved 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. [1]: /lookup/doi/10.1126/science.abe2824 |
| 领域 | 气候变化 ; 资源环境 |
| URL | 查看原文 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/335544 |
| 专题 | 气候变化 资源环境科学 |
| 推荐引用方式 GB/T 7714 | Andrew D. King,Cristiano Nisoli,Edward D. Dahl,et al. Qubit spin ice[J]. Science,2021. |
| APA | Andrew D. King,Cristiano Nisoli,Edward D. Dahl,Gabriel Poulin-Lamarre,&Alejandro Lopez-Bezanilla.(2021).Qubit spin ice.Science. |
| MLA | Andrew D. King,et al."Qubit spin ice".Science (2021). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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