Dynamical imperfections in quantum computers
Paolo Facchi, Simone Montangero, Rosario Fazio, Saverio Pascazio · Physical Review A · 2005
We study the effects of dynamical imperfections in quantum computers. By considering an explicit example, we identify different regimes ranging from the low-frequency case, where the imperfections can be considered as static but with renormalized parameters, to the high-frequency fluctuations, where the effects of imperfections are completely wiped out. We generalize our results by proving a theorem on the dynamical evolution of a system in the presence of dynamical perturbations.