论文标题

rydberg阵列中的Ising Critical Bootstrable blaster液体的量子自旋液体

Quantum spin liquids bootstrapped from Ising criticality in Rydberg arrays

论文作者

Slagle, Kevin, Liu, Yue, Aasen, David, Pichler, Hannes, Mong, Roger S. K., Chen, Xie, Endres, Manuel, Alicea, Jason

论文摘要

Rydberg原子阵列构成了一个高度可调的,强烈的相互作用的场所,以追求异国情调的物质状态。我们制定了一种新的策略,用于访问二维Rydberg阵列中称为量子自旋液体的分数化相位。我们专门使用有效的现场理论方法来研究从rydberg链组成的阵列,这些阵列调整为伊辛的相变,该阵列著名地托管了在每个链中传播的新兴费米子。这个高度纠缠的起点使我们能够自然地访问Kitaev蜂窝模型中熟悉的旋转液体,尽管它是完全不同的框架。特别是,我们认为有限范围的排斥性瑞德伯格互动会使附近的对称性破坏命令感到沮丧,这可以使它们诞生的链条之间的紧急繁殖能够连贯地传播。在整个二维Rydberg阵列中,新兴的费米子的离域将带有单个无质量迪拉克锥体的无间隙Z2自旋液体产生。在这里,Rydberg职业数字表现出通用的幂律相关性,可简单地对此阶段进行实验诊断。我们进一步表明,明确打破对称的对称性将无间隙的旋转液体变成拓扑,拓扑秩序的后代:打破晶格对称会产生折磨代码拓扑秩序,而引入chirucitucta则产生了非阿贝尔人的拓扑顺序。在复曲面阶段,我们通过分析构建非亚伯式缺陷的微观化身,可以通过动态控制阵列中的原子位置来创建和运输。我们的工作表明,适当调整的Rydberg阵列提供了固态“ Kitaev材料”的冷原子,更普遍地聚焦了一个新的角度,用于追求阿贝里安和非阿贝尔分数的实验平台。

Arrays of Rydberg atoms constitute a highly tunable, strongly interacting venue for the pursuit of exotic states of matter. We develop a new strategy for accessing a family of fractionalized phases known as quantum spin liquids in two-dimensional Rydberg arrays. We specifically use effective field theory methods to study arrays assembled from Rydberg chains tuned to an Ising phase transition that famously hosts emergent fermions propagating within each chain. This highly entangled starting point allows us to naturally access spin liquids familiar from Kitaev's honeycomb model, albeit from an entirely different framework. In particular, we argue that finite-range repulsive Rydberg interactions, which frustrate nearby symmetry-breaking orders, can enable coherent propagation of emergent fermions between the chains in which they were born. Delocalization of emergent fermions across the full two-dimensional Rydberg array yields a gapless Z2 spin liquid with a single massless Dirac cone. Here, the Rydberg occupation numbers exhibit universal power-law correlations that provide a straightforward experimental diagnostic of this phase. We further show that explicitly breaking symmetries perturbs the gapless spin liquid into gapped, topologically ordered descendants: Breaking lattice symmetries generates toric-code topological order, whereas introducing chirality generates non-Abelian Ising topological order. In the toric-code phase, we analytically construct microscopic incarnations of non-Abelian defects, which can be created and transported by dynamically controlling the atom positions in the array. Our work suggests that appropriately tuned Rydberg arrays provide a cold-atoms counterpart of solid-state 'Kitaev materials' and, more generally, spotlights a new angle for pursuing experimental platforms for Abelian and non-Abelian fractionalization.

扫码加入交流群

加入微信交流群

微信交流群二维码

扫码加入学术交流群,获取更多资源