Improving the purity of one- and two-qubit gates by AC fields
Quantum Physics
2007-05-23 v1
Abstract
We investigate the influence of AC driving fields on the coherence properties of one- and two-qubit gate operations. In both cases, we find that for suitable driving parameters, the gate purity improves significantly. A mapping of the time-dependent system-bath model to an effective static model provides analytical results. The resulting purity loss compares favorably with numerical results.
Cite
@article{arxiv.quant-ph/0509085,
title = {Improving the purity of one- and two-qubit gates by AC fields},
author = {Sigmund Kohler and Peter Hänggi},
journal= {arXiv preprint arXiv:quant-ph/0509085},
year = {2007}
}
Comments
16 pages, 7 figures, style file included