Acknowledgements
Funding from the National Science Foundation under Grants No. CCF-0726439, No. PHY-0802678, and No. PHY-0803304, and by the United States Department of Defense, is gratefully acknowledged.


Daniel Lidar's Group
Funding from the National Science Foundation under Grants No. CCF-0726439, No. PHY-0802678, and No. PHY-0803304, and by the United States Department of Defense, is gratefully acknowledged.

