Measuring Bipartite Spin Correlations of Lattice-Trapped Dipolar Atoms

被引：0

作者：

Alaoui, Youssef Aziz ^{[1
,2
]}

Muleady, Sean R. ^{[3
,4
,5
,6
,7
,8
]}

Chaparro, Edwin ^{[3
,4
,5
]}

Trifa, Youssef ^{[9
]}

Rey, Ana Maria ^{[3
,4
,5
]}

Roscilde, Tommaso ^{[9
]}

Laburthe-Tolra, Bruno ^{[1
,2
]}

Vernac, Laurent ^{[1
,2
]}

机构：

[1] Univ Sorbonne Paris Nord, Lab Phys Lasers, F-93430 Villetaneuse, France

[2] CNRS, UMR 7538, LPL, F-93430 Villetaneuse, France

[3] Univ Colorado, JILA, NIST, Boulder, CO USA

[4] Univ Colorado, Dept Phys, Boulder, CO USA

[5] Univ Colorado, Ctr Theory Quantum Matter, Boulder, CO 80309 USA

[6] NIST, Joint Ctr Quantum Informat & Comp Sci, College Pk, MD 20742 USA

[7] Univ Maryland, College Pk, MD 20742 USA

[8] NIST, Joint Quantum Inst, College Pk, MD 20742 USA

[9] Univ Lyon, Ens Lyon, CNRS, Lab Phys, F-69342 Lyon, France

来源：

PHYSICAL REVIEW LETTERS | 2024年 / 133卷 / 20期

关键词：

ENTANGLEMENT ENTROPY; QUANTUM; THERMALIZATION; DYNAMICS;

D O I：

10.1103/PhysRevLett.133.203401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate a bipartition technique using a superlattice architecture to access correlations between alternating planes of a mesoscopic array of spin-3 chromium atoms trapped in a 3D optical lattice. Using this method, we observe that out-of-equilibrium dynamics driven by long-range dipolar interactions lead to spin anticorrelations between the two spatially separated subsystems. Our bipartite measurements reveal a subtle interplay between the anisotropy of the 3D dipolar interactions and that of the lattice structure, without requiring single-site addressing. We compare our results to theoretical predictions based on a truncated cumulant expansion and a new cluster semiclassical method that we use to investigate correlations at the microscopic scale. Comparison with a high-temperature analytical model reveals quantum thermalization at a high negative spin temperature.

引用

页数：6

共 67 条

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