English

Optimal control technique for Many Body Quantum Systems dynamics

Quantum Physics 2015-03-13 v2 Other Condensed Matter

Abstract

We present an efficient strategy for controlling a vast range of non-integrable quantum many body one-dimensional systems that can be merged with state-of-the-art tensor network simulation methods like the density Matrix Renormalization Group. To demonstrate its potential, we employ it to solve a major issue in current optical-lattice physics with ultra-cold atoms: we show how to reduce by about two orders of magnitudes the time needed to bring a superfluid gas into a Mott insulator state, while suppressing defects by more than one order of magnitude as compared to current experiments [1]. Finally, we show that the optimal pulse is robust against atom number fluctuations.

Keywords

Cite

@article{arxiv.1003.3750,
  title  = {Optimal control technique for Many Body Quantum Systems dynamics},
  author = {Patrick Doria and Tommaso Calarco and Simone Montangero},
  journal= {arXiv preprint arXiv:1003.3750},
  year   = {2015}
}

Comments

5 pages, 4 figures, published version

R2 v1 2026-06-21T14:59:47.821Z