Stroboscopic observation of quantum many-body dynamics
Abstract
Recent experiments have demonstrated single-site resolved observation of cold atoms in optical lattices. Thus, in the future it may be possible to take repeated snapshots of an interacting quantum many-body system during the course of its evolution. Here we address the impact of the resulting Quantum (anti-)Zeno physics on the many-body dynamics. We use the time-dependent density-matrix renormalization group to obtain the time evolution of the full many-body wave function, which is then periodically projected in order to simulate realizations of stroboscopic measurements. For the example of a one-dimensional lattice of spin-polarized fermions with nearest-neighbor interactions, we find regimes for which many-particle configurations are stabilized and destabilized depending on the interaction strength and the time between observations.
Cite
@article{arxiv.1102.1605,
title = {Stroboscopic observation of quantum many-body dynamics},
author = {Stefan Kessler and Andreas Holzner and Ian P. McCulloch and Jan von Delft and Florian Marquardt},
journal= {arXiv preprint arXiv:1102.1605},
year = {2012}
}
Comments
5+1 pages, 6 figures, published version with supplemental material included