CONTROL OF DECOHERENCE WITH MULTIPULSE APPLICATION

We present a strategy to control decoherence with multipulse application. We show that the degradation of a two-level system which linearly interacts with a reservoir characterized by a specific frequency is effectively suppressed by synchronizing the pulse-train application with the dynamical motion of the reservoir. We find that the non-Markovian nature of dynamical motion of the reservoir makes this strategy effective.