论文标题
失调的调制通用复合脉冲
Detuning modulated universal composite pulses
论文作者
论文摘要
我们提出了一种通用方法，用于导致典型的两态量子系统的N旋转来得出引导模型的复合脉冲（DMCP），以创建与系统初始状态无关的准确且可靠的脉冲。该方案的脉冲开销很小，并且可以在$ 10^{ - 4} $阈值内实现稳定的振幅误差，该脉冲可能适用于系统的寿命内。这个脉冲系列使硅光子学中不可避免的制造错误，并放松了对系统耦合到系统以实现准确的光传递的精确初始状态的需求。此外，我们将通用DMCP扩展到具有不可还原SU（2）对称性的N级系统，以创建状态转移，从任何初始状态开始对脉冲区域中的误差高度鲁棒。
We present a general method to derive detuning-modualted composite pulses (DMCPs) as N rotations of a canonical two-state quantum system to create accurate and robust pulses that are independent of the initial state of the system. This scheme has minimal pulse overhead, and achieves pulses that are stable against amplitude errors well within the $10^{-4}$ threshold that may be suitable for quantum information processing (QIP), within the lifetime of the system. This family of pulses enables to overcome inevitable fabrication errors in silicon photonics, and relax the need for a precise initial state of light coupled into the system to achieve accurate light transfer. Furthermore, we extend universal DMCPs to n-level systems with irreducible SU(2) symmetry to create state transfer that is highly robust to errors in the pulse area from any initial state.
