Two-state system driven by imperfect pi pulses: an estimate of the error accumulation in bang-bang control methods
classification
🪐 quant-ph
keywords
bang-bangcontroldrivenimperfectmethodspulsessystemtwo-state
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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.
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