We perform quantum interference experiments on a single self-assembled semiconductor quantum dot. The presence or absence of a single exciton in the dot provides a qubit that we control with femtosecond time resolution. We combine a set of quantum operations to realize the single-qubit Deutsch-Jozsa algorithm. The results show the feasibility of single qubit quantum logic in a semiconductor quantum dot using ultrafast optical control.
@article{arxiv.cond-mat/0401226,
title = {Experimental realization of the one qubit Deutsch-Jozsa algorithm in a quantum dot},
author = {P. Bianucci and A. Muller and C. K. Shih and Q. Q. Wang and X. K. Xue and C. Piermarocchi},
journal= {arXiv preprint arXiv:cond-mat/0401226},
year = {2007}
}
Comments
REVTex4, 4 pages, 3 figures. Now includes more details about the dephasing in the quantum dots. The introduction has been reworded for clarity. Minor readability fixes