Error compensation of single-qubit gates in a surface-electrode ion trap using composite pulses
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© 2015 American Physical Society.The fidelity of laser-driven quantum logic operations on trapped ion qubits tend to be lower than microwave-driven logic operations due to the difficulty of stabilizing the driving fields at the ion location. Through stabilization of the driving optical fields and use of composite pulse sequences, we demonstrate high-fidelity single-qubit gates for the hyperfine qubit of a Yb+171 ion trapped in a microfabricated surface-electrode ion trap. Gate error is characterized using a randomized benchmarking protocol and an average error per randomized Clifford group gate of 3.6(3)×10-4 is measured. We also report experimental realization of palindromic pulse sequences that scale efficiently in sequence length.
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Mount, E, C Kabytayev, S Crain, R Harper, SY Baek, G Vrijsen, ST Flammia, KR Brown, et al. (2015). Error compensation of single-qubit gates in a surface-electrode ion trap using composite pulses. Physical Review A - Atomic, Molecular, and Optical Physics, 92(6). 10.1103/PhysRevA.92.060301 Retrieved from https://hdl.handle.net/10161/11507.
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Scholars@Duke
Kenneth R Brown
Prof. Brown's research interest is the control of quantum systems for both understanding the natural world and developing new technologies. His current research areas are the development of robust quantum computers and the study of molecular properties at cold and ultracold temperatures.
Jungsang Kim
Jungsang Kim leads the Multifunctional Integrated Systems Technology group at Duke University. His main area of current research is quantum information sciences, where his group uses trapped atomic ions and a range of photonics technologies in an effort to construct a scalable quantum information processors and quantum communication networks. His research focuses on introduction of new technologies, such as micro fabricated ion traps, optical micro-electromechanical systems, advanced single photon detectors, compact cryogenics and vacuum technologies, towards a functional integration of quantum information processing systems.
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