Ultrahigh-fidelity qubits for quantum computing

Mark G. Raizen,* Shou-Pu Wan, Chuanwei Zhang, and Qian Niu Center for Nonlinear Dynamics, The University of Texas at Austin, Austin, Texas 78712, USA Department of Physics, The University of Texas at Austin, Austin, Texas 78712, USA Department of Physics and Astronomy, Washington State University, Pullman, Washington 99164, USA Received 9 June 2009; revised manuscript received 21 July 2009; published 28 September 2009