Dynamical second-order noise sweetspots in resonantly driven spin qubits

Quantum dot-based quantum computation employs extensively the exchange interaction between nearby electronic spins in order to manipulate and couple different qubits. The interaction, however, couples qubit states charge noise, which reduces fidelity of gates that employ it. effect noise can be mitigated by working at sweetspots sensitivity variations is reduced. In this work we study response a double dot based presence ac gates, with arbitrary driving amplitudes, applied either levels or tunneling barrier. Tuning an allows sign strength as well its coupling environmental electric noise. Moreover, show possibility inducing second-order sweetspot resonant spin-triplet dephasing time significantly increased.