Dynamical decoupling employs sequences of pulses to counteract the environmental noise that causes decoherence. These pulses can be implemented using various techniques, such as the Carr-Purcell-Meiboom-Gill (CPMG) sequence or the Uhrig dynamical decoupling (UDD) sequence. The core principle involves applying these pulses at specific intervals to average out the noise effects, thereby preserving the quantum state.
