SAGE qubits gain magnetic protection from singlet-only encoding and always-on exchange but need refocusing pulses and ramp control to maintain coherence and gate performance against charge noise.
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Singlet-only always-on gapless exchange (SAGE) spin qubits: Charge noise effects and two-qubit gates
SAGE qubits gain magnetic protection from singlet-only encoding and always-on exchange but need refocusing pulses and ramp control to maintain coherence and gate performance against charge noise.