Optimal laser-control of double quantum dots
Other Condensed Matter
2008-05-08 v3
Abstract
Coherent single-electron control in a realistic semiconductor double quantum dot is studied theoretically. Using optimal-control theory we show that the energy spectrum of a two-dimensional double quantum dot has a fully controllable transition line. We find that optimized picosecond laser pulses generate population transfer at significantly higher fidelities (>0.99) than conventional sinusoidal pulses. Finally we design a robust and fast charge switch driven by optimal pulses that are within reach of terahertz laser technology.
Cite
@article{arxiv.0707.0179,
title = {Optimal laser-control of double quantum dots},
author = {E. Rasanen and A. Castro and J. Werschnik and A. Rubio and E. K. U. Gross},
journal= {arXiv preprint arXiv:0707.0179},
year = {2008}
}
Comments
5 pages, 4 figures