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Optimized dynamical decoupling for power-law noise spectra
We analyze the suppression of decoherence by means of dynamical decoupling in the pure-dephasing spin-boson model for baths with power law spectra. The sequence of ideal $\ensuremath{\pi}$ pulses is optimized according to the power of the bath. We expand the decoherence function and separate the canceling divergences from the relevant …