Quantum gas microscopy of fermionic triangular-lattice Mott insulators
Quantum gas microscopy of fermionic triangular-lattice Mott insulators
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DOI：
10.1103/physreva.108.l061301
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发表时间：
2022-10
影响因子：
2.9
通讯作者：
J. Mongkolkiattichai;Liyu Liu;D. Garwood;Jin Yang;P. Schauss
中科院分区：
文献类型：
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作者：
J. Mongkolkiattichai;Liyu Liu;D. Garwood;Jin Yang;P. Schauss
几何受挫的多粒子量子系统是出了名的难以数值研究，但由于其不寻常的性质和涌现现象而引起了人们的极大兴趣。在这些系统中，能量约束不能同时最小化，导致大的基态简并和各种奇异的量子相位。在这里，我们提出了一个平台，使前所未有的详细实验探索几何挫折的电子系统与三角形几何格。我们展示了三角形原子哈伯德系统的第一个实现，直接图像莫特绝缘体的三角形几何形状与单原子和单站点的分辨率，并测量反铁磁自旋自旋相关的所有最近的邻居允许测温。该平台为研究奇异量子磁性和直接探测Hubbard系统中的量子自旋液体特征提供了一种强有力的新方法。
Geometrically frustrated many-particle quantum systems are notoriously hard to study numerically but are of profound interest because of their unusual properties and emergent phenomena. In these systems energetic constraints cannot be minimized simultaneously, leading to large ground-state degeneracy and a variety of exotic quantum phases. Here, we present a platform that enables unprecedentedly detailed experimental exploration of geometrically frustrated electronic systems on lattices with triangular geometry. We demonstrate the first realization of triangular atomic Hubbard systems, directly image Mott insulators in the triangular geometry with single-atom and single-site resolution, and measure antiferromagnetic spin-spin correlations for all nearest neighbors allowing for thermometry. This platform provides a powerful new approach for studying exotic quantum magnetism and direct detection of quantum spin liquid signatures in Hubbard systems.