Two-state system driven by imperfect π pulses: An estimate of the error accumulation in bang-bang control methods
Julio R. Gea-Banacloche · Journal of Modern Optics · 2001
The evolution of a two-state system driven by a sequence of imperfect π pulses (with random phase or amplitude errors) is calculated. The resulting decreased fidelity is used to derive a plausible limit on the performance of ‘bang-bang’ control methods for the suppression of decoherence.