期刊
SCIENCE
卷 352, 期 6289, 页码 1094-1097出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aad5812
关键词
-
资金
- Alfred P. Sloan Foundation
- European Commision (UQUAM, AQuS)
- Nanosystems Initiative Munich
- Harvard Quantum Optics Center
- Harvard-Massachusetts Institute of Technology Center for Ultracold Atoms
- NSF [DMR-1308435]
- Defense Advanced Research Projects Agency Optical Lattice Emulator program
- Air Force Office of Scientific Research, Quantum Simulation Multidisciplinary University Research Initiative (MURI)
- Army Research Office (ARO)-MURI on Atomtronics
- ARO-MURI Qubit Enabled Imaging, Sensing, and Metrology program
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1308435] Funding Source: National Science Foundation
- Direct For Mathematical & Physical Scien
- Division Of Physics [1125846] Funding Source: National Science Foundation
Topology and geometry are essential to our understanding of modern physics, underlying many foundational concepts from high-energy theories, quantum information, and condensed-matter physics. In condensed-matter systems, a wide range of phenomena stem from the geometry of the band eigenstates, which is encoded in the matrix-valued-Wilson line for general multiband systems. Using an ultracold gas of rubidium atoms loaded in a honeycomb optical lattice, we realize strong-force dynamics in Bloch bands that are described by Wilson lines and observe an evolution in the band populations that directly reveals the band geometry. Our technique enables a full determination of band eigenstates, Berry curvature, and topological invariants, including single-and multiband Chern and Z(2) numbers.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据