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.
arXiv comment3 pages, 4 figures
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- Measuring Zak phase in room-temperature atoms
- Many-body quantum dynamics of an asymmetric bosonic Josephson junction
- Observation of period-doubling Bloch oscillations
- Longitudinal and transversal resonant tunneling of interacting bosons in a two-dimensional Josephson junction: Mean-field and many-body dynamics
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- Determination of Chern numbers with a phase retrieval algorithm
- Anomalous transport in a topological Wannier-Stark ladder
- Optical Absorption and Emission from Wannier-Stark Spectra of Moiré Superlattices
- Synthesizing arbitrary dispersion relations in a modulated tilted optical lattice