English

Analytic Approach for Controlling Quantum States in Complex Systems

Chaotic Dynamics 2007-05-23 v1 Chemical Physics Quantum Physics

Abstract

We examine random matrix systems driven by an external field in view of optimal control theory (OCT). By numerically solving OCT equations, we can show that there exists a smooth transition between two states called "moving bases" which are dynamically related to initial and final states. In our previous work [J. Phys. Soc. Jpn. 73 (2004) 3215-3216; Adv. Chem. Phys. 130A (2005) 435-458], they were assumed to be orthogonal, but in this paper, we introduce orthogonal moving bases. We can construct a Rabi-oscillation like representation of a wavpacket using such moving bases, and derive an analytic optimal field as a solution of the OCT equations. We also numerically show that the newly obtained optimal field outperforms the previous one.

Keywords

Cite

@article{arxiv.nlin/0701056,
  title  = {Analytic Approach for Controlling Quantum States in Complex Systems},
  author = {Toshiya Takami and Hiroshi Fujisaki},
  journal= {arXiv preprint arXiv:nlin/0701056},
  year   = {2007}
}

Comments

12 pages, 8 figures, formatted by REVTeX-4, submitted to Phys. Rev. E