Topological phase transitions in tilted optical lattices
arXiv:1802.07530 · doi:10.1103/PhysRevA.98.013603
Abstract
We analyze the energy spectrum and eigenstates of cold atoms in a tilted brick-wall optical lattice. When the tilt is applied, the system exhibits a sequence of topological phase transitions reflected in an abrupt change of the eigenstates. It is demonstrated that these topological phase transitions can be easily detected in a laboratory experiment by observing Bloch oscillations of cold atoms.
3 pages, 4 figures