Coherent spin qubit shuttling through germanium quantum dots

Raw data on which the figures in the publication 'Coherent spin qubit shuttling through germanium quantum dots' are based and the python scripts which are used to generated the figures.

Abstract of the paper:

Quantum links can interconnect qubit registers and are therefore essential in networked quantum
computing. Semiconductor quantum dot qubits have seen significant progress in the high-fidelity
operation of small qubit registers but establishing a compelling quantum link remains a challenge.
Here, we show that a spin qubit can be shuttled through multiple quantum dots while preserving its
quantum information. Remarkably, we achieve these results using hole spin qubits in germanium,
despite the presence of strong spin-orbit interaction. We accomplish the shuttling of spin basis
states over effective lengths beyond 300 μm and demonstrate the coherent shuttling of superposition
states over effective lengths corresponding to 9 μm, which we can extend to 49 μm by incorporating
dynamical decoupling. These findings indicate qubit shuttling as an effective approach to route
qubits within registers and to establish quantum links between registers.