Fast shuttling of trapped ion with invariant quantum control

在一个结构化的陷阱几何结构中，在不同的空间区域之间穿梭离子的能力是使捕获离子成为可扩展的量子技术的核心必要条件。由于量子逻辑门依赖于离子的运动态足够接近基态，因此穿梭协议不会让离子处于激发运动状态是很重要的。这例如可以利用绝热协议来实现，但是这种协议固有的缓慢与在消相干施加的限制内执行操作的必要性相冲突

The ability to shuttle ions between different spatial regions in a structured trapping geometryis a central requisite for making trapped ions a scalable quantum technology. Since quantum logic gates rely onthe motional state of ions to be sufficiently close to the ground state, it is important that a shuttling protocoldoes not leave an ion in an excited motional state. This can be achieved for example with adiabatic protocols,but the inherent slowness of such protocols is conflicting with the necessity to perform operations within thelimitations imposed by decoherence