期刊
PHYSICAL REVIEW A
卷 86, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.86.042329
关键词
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资金
- US ARO [W911NF-11-1-0068]
- US NSF [PHY-0903727]
- IARPA QCS program [RC051-S4]
- Alfried Krupp Prize for Young University Teachers of the Alfried Krupp von Bohlen and Halbach Foundation
- Direct For Mathematical & Physical Scien
- Division Of Physics [0903727] Funding Source: National Science Foundation
Dynamically corrected gates are extended to non-Markovian open quantum systems where limitations on the available controls and/or the presence of control noise make existing analytical approaches unfeasible. A computational framework for the synthesis of dynamically corrected gates is formalized that allows sensitivity against non-Markovian decoherence and control errors to be perturbatively minimized via numerical search, resulting in robust gate implementations. Explicit sequences for achieving universal high-fidelity control in a singlet-triplet spin qubit subject to realistic system and control constraint are provided, which simultaneously cancel to the leading order the dephasing due to non-Markovian nuclear-bath dynamics and voltage noise affecting the control fields. Substantially improved gate fidelities are predicted for current laboratory devices.
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