Characterizing gate operations near the sweet spot of an exchange-only qubit
Characterizing gate operations near the sweet spot of an exchange-only qubit
Optimal working points or ``sweet spots'' have arisen as an important tool for mitigating charge noise in quantum dot logical spin qubits. The exchange-only qubit provides an ideal system for studying this effect because $Z$ rotations are performed directly at the sweet spot, while $X$ rotations are not. Here, we …