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Spin-orbit-enabled realization of arbitrary two-qubit gates on moving spins
D. Fern\'andez-Fern\'andez, Y. Matsumoto, L. M. K. Vandersypen, G. Platero, S. Bosco
https://arxiv.org/abs/2508.08394

Spin-orbit-enabled realization of arbitrary two-qubit gates on moving spins
Shuttling spin qubits in systems with large spin-orbit interaction (SOI) can cause errors during motion. However, in this work, we demonstrate that SOI can be harnessed to implement an arbitrary high-fidelity two-qubit (2Q) gate. We consider two spin qubits defined in a semiconductor double quantum dot that are smoothly moved toward each other by gate voltages. We show that an arbitrary high-fidelity 2Q gate can be realized by controlling the shuttling speed and waiting times, and leveraging st…