Optimal Control of High-Fidelity Quantum Gates in the Presence of   Decoherence
  This paper has been withdrawn as it has been superseded by postings arXiv:quant-ph/0702147 and arXiv:0712.2935 
Matthew Grace, Constantin Brif, Herschel Rabitz, Ian Walmsley, Robert   Kosut, Daniel A. Lidar