Quantum quench in an atomic one-dimensional Ising chain
Quantum Gases
2013-08-01 v2
Abstract
We study non-equilibrium dynamics for an ensemble of tilted one-dimensional atomic Bose-Hubbard chains after a sudden quench to the vicinity of the transition point of the Ising paramagnetic to anti-ferromagnetic quantum phase transition. The quench results in coherent oscillations for the orientation of effective Ising spins, detected via oscillations in the number of doubly-occupied lattice sites. We characterize the quench by varying the system parameters. We report significant modification of the tunneling rate induced by interactions and show clear evidence for collective effects in the oscillatory response.
Cite
@article{arxiv.1304.2628,
title = {Quantum quench in an atomic one-dimensional Ising chain},
author = {Florian Meinert and Manfred J. Mark and Emil Kirilov and Katharina Lauber and Philipp Weinmann and Andrew J. Daley and Hanns-Christoph Nägerl},
journal= {arXiv preprint arXiv:1304.2628},
year = {2013}
}
Comments
8 pages, 7 figures