Qubit Coherence Simulation

Our novel SU2 polymorphic C++ package (available through JINRlib) is used to simulate a spin echo technique with qubits, such as IBM’s Q-Experience Armonk, as a method to determine their characteristic T₁ and T₂ parameters (thermal relaxation time and dephasing time, respectively). Although spin-echo is typically a T₂ measurement, it is important to understand the impact of T₁ and perform a combined fit to the data, for a more accurate T₂ measurement. Such simulative experiments are important in order to design experimental techniques for measuring qubit parameters—thereby highlighting the usefulness of the SU2 package. We present the polymorphic non-abelian capabilities of the package, together with its excellent CPU performance.