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quant-ph2026
Concatenated continuous-drive protection of exchange-based spin-qubit gates
Takuma Kuno, Takeru Utsugi, Andrew J. Ramsay +3
Exchange-based two-qubit gates in semiconductor spin qubits are sensitive to low-frequency detuning noise and control errors. Here, we extend concatenated continuous driving (CCD),…
quant-ph2026
Smooth velocity shuttling for suppressing valley excitations in disordered Si/SiGe quantum dots
Ryo Nagai, Takashi Takemoto, Hiroyuki Mizuno
Coherent electron shuttling is a key requirement for realizing scalable silicon quantum computing architectures. However, in silicon qubits, the existence of nearly degenerate cond…
quant-ph2026★ 1 cited
Concatenated continuous driving of silicon qubit by amplitude and phase modulation
Takuma Kuno, Takeru Utsugi, Andrew J. Ramsay +22
The rate of coherence loss is lower for a qubit under the Rabi drive than a freely evolving qubit . Building on this principle, concatenated continuous d…