On quantum phase transitions in tilted 2D lattices
Strongly Correlated Electrons
2016-03-23 v1 Quantum Gases
Quantum Physics
Abstract
We discuss the quantum phase transition from the Mott-insulator state to the density-wave state for cold Bose atoms in a 2D square lattice as the lattice is adiabatically tilted along one of its primary axes. It is shown that a small misalignment of the tilt drastically changes the result of the adiabatic passage and, instead of the density-wave state, one obtains a disordered state. Intrinsic relation of the problem to Bloch oscillations of hard-core bosons in a 2D lattice is illuminated.
Cite
@article{arxiv.1510.02671,
title = {On quantum phase transitions in tilted 2D lattices},
author = {Andrey R. Kolovsky},
journal= {arXiv preprint arXiv:1510.02671},
year = {2016}
}
Comments
4 pages, 3 figures