论文标题
捕获离子中强大的自旋旋转动力学的相位自适应动力学解耦方法
Phase-adaptive dynamical decoupling methods for robust spin-spin dynamics in trapped ions
论文作者
论文摘要
基于捕获离子的量子平台是构建量子硬件的主要候选者，其计算能力在很大程度上超过了经典设备。在这些设置中可用的控制技术中，脉冲动力学去耦（脉冲DD）显示为处理离子寄存器中编码的信息的有用方法，同时最大程度地减少了它们的环境噪声。在这项工作中，我们结合了一种脉冲DD技术，该技术使用随机脉冲相或相关的脉冲阶段，以显着增强被困离子中纠缠自旋旋转动力学的鲁棒性。该过程最初是在核旋转检测目的的核磁共振中构想的，在这里我们证明，相同的原理适用于诱捕的离子设置中强大的量子信息处理。
Quantum platforms based on trapped ions are main candidates to build a quantum hardware with computational capacities that largely surpass those of classical devices. Among the available control techniques in these setups, pulsed dynamical decoupling (pulsed DD) revealed as a useful method to process the information encoded in ion registers, whilst minimising the environmental noise over them. In this work, we incorporate a pulsed DD technique that uses random pulse phases, or correlated pulse phases, to significantly enhance the robustness of entangling spin-spin dynamics in trapped ions. This procedure was originally conceived in the context of nuclear magnetic resonance for nuclear spin detection purposes, and here we demonstrate that the same principles apply for robust quantum information processing in trapped-ion settings.
