【摘 要】
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Fault-tolerant quantum computing requires high-fidelity gates so that errors can be corrected.So far,various schemes have been proposed to increase gate fidelities,including nonadiabatic holonomic gates [1-4] and topological dynamical decoupling [5].Nonad
【机 构】
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Department of Physics,Tsinghua University,Beijing 100084,China
【出 处】
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中国科学：物理学 力学 天文学（英文版）
论文部分内容阅读
Fault-tolerant quantum computing requires high-fidelity gates so that errors can be corrected.So far,various schemes have been proposed to increase gate fidelities,including nonadiabatic holonomic gates [1-4] and topological dynamical decoupling [5].Nonadiabatic holonomic gates have been experimentally demonstrated in nuclear magnetic resonance [1],superconducting transmon qubit systems [2],and nitrogen-vacancy centers in diamond [3,4].As reported in ref.[2],the nonadiabatic holonomic one-qubit gates are realizable in the lowest three-level ladder-type system with the second excited state as an auxiliary level.However,owing to the relatively short coherence time of the second excited state of the transmon qubit system,the resultant gates see a reduced fidelity.
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