Interaction Effects on the Dynamical Anderson Metal-Insulator Transition Using Kicked Quantum Gases

被引：0

作者：

Toh, Jun Hui See ^{[1
]}

Du, Mengxin ^{[2
]}

Tang, Xinxin ^{[1
]}

Su, Ying ^{[2
]}

Rojo, Tristan ^{[1
]}

Patterson, Carson O. ^{[1
]}

Williams, Nicolas R. ^{[1
]}

Zhang, Chuanwei ^{[2
,3
]}

Gupta, Subhadeep ^{[1
]}

机构：

[1] Univ Washington, Dept Phys, Seattle, WA 98195 USA

[2] Univ Texas Dallas, Dept Phys, Richardson, TX 75080 USA

[3] Washington Univ, Dept Phys, St Louis, MO 63130 USA

来源：

PHYSICAL REVIEW LETTERS | 2024年 / 133卷 / 07期

基金：

美国国家科学基金会;

关键词：

LOCALIZATION; SYSTEM; RESONANCES; DIFFUSION; ABSENCE;

D O I：

10.1103/PhysRevLett.133.076301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Understanding the interplay of interaction and disorder in quantum transport poses long-standing scientific challenges for theory and experiment. While highly controlled ultracold atomic platforms combining atomic interactions with spatially disordered lattices have led to remarkable advances, the extension of such controlled studies to phenomena in high-dimensional disordered systems, such as the three-dimensional Anderson metal-insulator transition has been limited. Kicked quantum gases provide an alternate experimental platform that captures the Anderson model in momentum space and features dynamical localization as the analog of Anderson localization. Here, we utilize a momentum space lattice platform using quasiperiodically kicked ultracold atomic gases to experimentally investigate interaction effects on the three-dimensional dynamical Anderson metal-insulator transition. We observe interaction- driven subdiffusion and a divergence of delocalization onset time on approaching the phase boundary. Mean-field numerical simulations show qualitative agreement with experimental observations, but with significant quantitative deviations.

引用

页数：7

共 55 条

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