Two-state system driven by imperfect pi pulses: an estimate of the error accumulation in bang-bang control methods
arXiv:quant-ph/0008105 · doi:10.1080/09500340108230963
Abstract
The evolution of a two-state system driven by a sequence of imperfect pi 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.
9 pages, 3 figures; submitted to Journal of Modern Optics