论文标题
通过非对称Rydberg相互作用
Spheroidal-structure-based multi-qubit Toffoli gate via asymmetric Rydberg interaction
论文作者
论文摘要
我们通过不对称的Rydberg封锁提出了一种异国情调的多Quition Toffoli Gate协议，该协议受益于使用球体配置来优化门的性能。球体结构的优点在于，在球体内所有控制目标原子对之间的强烈封闭能量的良好保存，这可以持续将阻断误差保持在较低水平。根据三种不同类型的$（2+1）$ - $ QUBIT $ GATE单位的优化，以最大程度地减少反块错误，最佳$（6+1）$ - $ QUBIT $配置的门忠诚度可以达到高达$ 0.9841 $ $ 0.9841 $ $ $ $ $主要由衰减错误贡献。还讨论了具有更多控制原子的扩展。我们的发现可能会阐明特殊高维阵列中可扩展的中性原子量子计算。
We propose an exotic multi-qubit Toffoli gate protocol via asymmetric Rydberg blockade, benefiting from the use of a spheroidal configuration to optimize the gate performance. The merit of a spheroidal structure lies in a well preservation of strong blocked energies between all control-target atom pairs within the sphere, which can persistently keep the blockade error at a low level. On the basis of optimization for three different types of $(2+1)$-$qubit$ gate units to minimize the antiblockade error, the gate fidelity of an optimal $(6+1)$-$qubit$ configuration can attain as high as $0.9841$ mainly contributed by the decay error. And the extension with much more control atoms is also discussed. Our findings may shed light on scalable neutral-atom quantum computation in special high-dimensional arrays.
