English

Quantum synchronization

Other Condensed Matter 2007-05-23 v2 Disordered Systems and Neural Networks

Abstract

Using the methods of quantum trajectories we study numerically the phenomenon of quantum synchronization in a quantum dissipative system with periodic driving. Our results show that at small values of Planck constant \hbar the classical devil's staircase remains robust with respect to quantum fluctuations while at large \hbar values synchronization plateaus are destroyed. Quantum synchronization in our model has close similarities with Shapiro steps in Josephson junctions and it can be also realized in experiments with cold atoms.

Keywords

Cite

@article{arxiv.cond-mat/0507029,
  title  = {Quantum synchronization},
  author = {O. V. Zhirov and D. L. Shepelyansky},
  journal= {arXiv preprint arXiv:cond-mat/0507029},
  year   = {2007}
}

Comments

5 pages, 5 figs, 1 fig added, research at http://www.quantware.ups-tlse.fr