Fast shuttling of trapped ion with invariant quantum control

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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