Qubit Noise Spectroscopy for Non-Gaussian Dephasing Environments
Qubit Noise Spectroscopy for Non-Gaussian Dephasing Environments
We introduce open-loop quantum control protocols for characterizing the spectral properties of non-Gaussian noise, applicable to both classical and quantum dephasing environments. By engineering a multidimensional frequency comb via repetition of suitably designed pulse sequences, the desired high-order spectra may be related to observable properties of the qubit probe. We …