“…The duration of pulses U P 1 , U P 2 , U P 3 , U P 4 are 500 μs, 9000 μs, 7500 μs, 4000 μs, respectively. The experimental state was reconstructed using a least squares constrained convex optimization technique [45]. The set of tomographic operations {III, IIY, IY Y, Y II, XY X, XXY, XXX} where the X(Y ) denotes the single spin operator implemented by a spin-selective π 2 pulse and I denotes no operation were performed to reconstruct the final density operator.…”