Efficient scheme for one-way quantum computing in thermal cavities
Quantum Physics
2011-02-09 v1
Abstract
We propose a practical scheme for one-way quantum computing based on efficient generation of 2D cluster state in thermal cavities. We achieve a controlled-phase gate that is neither sensitive to cavity decay nor to thermal field by adding a strong classical field to the two-level atoms. We show that a 2D cluster state can be generated directly by making every two atoms collide in an array of cavities, with numerically calculated parameters and appropriate operation sequence that can be easily achieved in practical Cavity QED experiments. Based on a generated cluster state in Box configuration, we then implement Grover's search algorithm for four database elements in a very simple way as an example of one-way quantum computing.
Keywords
Cite
@article{arxiv.0704.2297,
title = {Efficient scheme for one-way quantum computing in thermal cavities},
author = {Wen-Xing Yang and Zhe-Xuan Gong},
journal= {arXiv preprint arXiv:0704.2297},
year = {2011}
}