Error-Insensitive 3D Entanglement Gate with Optimal Control of Geometric Evolution,Annalen Der Physik

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Error-Insensitive 3D Entanglement Gate with Optimal Control of Geometric Evolution
Annalen Der Physik ( IF 2.2 ) Pub Date : 2021-06-15 , DOI: 10.1002/andp.202100145
Wei Niu ₁ , Jin‐Lei Wu ₂ , Pan Wang ₁ , Xin Ji ₁

Affiliation

By using the counterdiabatic driving method, two-atom 3D entanglement gates are constructed rapidly based on adiabatic geometric quantum computation (AGQC). The added counterdiabatic Hamiltonian does not introduce additional unaccessible ground-state coupling, and the shapes and phases of the initial adiabatic classical-field pulse only need to be modified. By using the optimal control technology, the effect of the control errors of Rabi frequency or detuning is suppressed effectively. Quite specially, with an appropriate choice of optimized parameters, the authors' scheme could be insensitive to these two kinds of errors simultaneously. By combining AGQC with optimal control, the scheme could offer a promising means for constructing fast and robust high-dimensional quantum entanglement gate.

中文翻译：

具有几何演化最优控制的误差不敏感 3D 纠缠门

通过使用反绝热驱动方法，基于绝热几何量子计算（AGQC）快速构建了双原子3D纠缠门。添加的反绝热哈密顿量不会引入额外的不可访问的基态耦合，并且只需要修改初始绝热经典场脉冲的形状和相位。采用最优控制技术，有效抑制拉比频率或失谐控制误差的影响。Quite specially, with an appropriate choice of optimized parameters, the authors' scheme could be insensitive to these two kinds of errors simultaneously. 通过将 AGQC 与最优控制相结合，该方案可为构建快速且稳健的高维量子纠缠门提供一种有前景的方法。

更新日期：2021-08-07

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