Process tomography of robust dynamical decoupling with superconducting qubits

Dynamical decoupling is a technique that protects qubits against noise. The ability to preserve quantum coherence in the presence of noise essential for developing devices. Here, Rigetti computing platform was used test different dynamical sequences single qubit. performance characterized by process tomography and analyzed using channels formalism. Pulse imperfections are shown here limit on Rigetti’s qubits. However, can be improved robust decoupling, i.e., experimental imperfections. tested outperformed previous same platform.