2026/04/23 by Qirat Iqbal, Altaf H. Nizamani
Computer Science · Chemistry · Physics and Astronomy · #Quantum Information and Cryptography #Mass Spectrometry Techniques and Applications #Quantum and electron transport phenomena
paper · pdf · doi:10.1088/2399-6528/ae82b3
Abstract We investigate optimized vertical ion-shuttling protocols for trapped-ion applications across a range of ion-trap experiments, including three-dimensional gradient-measurement sensors, on-chip ion fluorescence collection and imaging, improved laser accessibility, and quantum information processing. In this work, we focus on minimizing motional energy gain during ion transport. Our findings indicate that anomalous heating becomes the dominant limiting factor only for shuttling durations exceeding 500 µ s, whereas the final motional excitation is strongly dependent on the selected shuttling protocol. Using a recently measured heating rate of (3.1± 0.35) quanta ms −1 at an ion–surface separation of 134± 1.5 µ m, we demonstrate that the motional excitation can be restricted to fewer than eight quanta when the ion is vertically displaced to 86 µ m from its initial position at 134 µ m within 500 µ s. These results establish the feasibility of near-adiabatic vertical ion shuttling compatible with the operational requirements of high-fidelity quantum sensing and scalable quantum information processing applications.