A spin-triplet encoding based on valley-singlet states makes shuttling fidelities in Si/SiGe quantum wells higher and more robust to small valley splittings by suppressing Landau-Zener excitations.
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Theoretical study of flopping-mode qubits in Si/SiGe showing that high-fidelity operation is achievable across valley configurations when pulses are tuned for weak noise or when valley splittings are large and phase differences small for strong noise.
citing papers explorer
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Using a spin-triplet encoding to enhance shuttling fidelities in Si/SiGe quantum wells
A spin-triplet encoding based on valley-singlet states makes shuttling fidelities in Si/SiGe quantum wells higher and more robust to small valley splittings by suppressing Landau-Zener excitations.
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The effects of alloy disorder on strongly-driven flopping mode qubits in Si/SiGe
Theoretical study of flopping-mode qubits in Si/SiGe showing that high-fidelity operation is achievable across valley configurations when pulses are tuned for weak noise or when valley splittings are large and phase differences small for strong noise.