Author(s): Nayden P. Nedev and Nikolay V. Vitanov Systematic pulse-area errors limit the fidelity of quantum control across many qubit platforms. We introduce twinned dynamical decoupling, an analytic family of sequences $T2n$ in which a pulse sequence is paired with its $π$-phase-shifted twin. This $π$-phase step cancels common-mode systematic pul… [Phys. Rev. Lett. 137, 170803] Published Thu Oct 22, 2026