Amico Luigi, Osterloh Andreas, Cataliotti Francesco
CRS MATIS-INFM, via S. Sofia 64, 95125 Catania, Italy.
Phys Rev Lett. 2005 Aug 5;95(6):063201. doi: 10.1103/PhysRevLett.95.063201. Epub 2005 Aug 1.
In the present work we demonstrate how to realize a 1D closed optical lattice experimentally, including a tunable boundary phase twist. The latter may induce "persistent currents" visible by studying the atoms' momentum distribution. We show how important phenomena in 1D physics can be studied by physical realization of systems of trapped atoms in ring-shaped optical lattices. A mixture of bosonic and/or fermionic atoms can be loaded into the lattice, realizing a generic quantum system of many interacting particles.
在本工作中，我们展示了如何通过实验实现一维封闭光学晶格，包括可调谐的边界相位扭曲。通过研究原子的动量分布，后者可能会诱导出可见的“持续电流”。我们展示了如何通过在环形光学晶格中物理实现捕获原子系统来研究一维物理中的重要现象。可以将玻色子和/或费米子原子的混合物加载到晶格中，实现一个由许多相互作用粒子组成的通用量子系统。
