Protecting quantum gates from arbitrary single- and two-qubit errors
Protecting quantum gates from arbitrary single- and two-qubit errors
We explore the protection of quantum gates from arbitrary single- and two-qubit noises with properly designed dynamical decoupling pulses. The proposed dynamical decoupling method is a concatenation of a sequence of pulses formed by $\sigma_x$, $\sigma_x\sigma_x$ with another sequence constructed by $\sigma_z$, $\sigma_z\sigma_z$. The concatenation of the two sequences results …