… In this spirit, an experimental protocol for characterizing the coherence of a noise channel …
present a protocol for estimating a particular quantification of the coherence of noise, which we …

… than incoherent noise such as T1 and T2 processes. The BEPG for coherent noise accumulates
quadratically with the number of gates, whereas incoherent noise accumulates linearly. …

… ; both ordinary and partial coherence methods are indispensable … to estimate the coherent
signal and incoherent noise content of … and noise spectra estimated by the multiple coherence …

… We illustrate how the framework works for both noiseless and noisy estimation procedures,
in particular those based on multi-qubit GHZ-states. Finally we succinctly analyze …

… of it could lead to large errors in the estimated coherence. This reemphasizes the importance
of … ratio is even more poorly estimated because the noise estimate is small and unreliable. …

… In the text, we focus on the estimation of relative entropy of coherence, defined as Cr (ρ…
noise models for experiments, dephasing noise and depolarizing noise, where the detailed noise …

… not hold for estimates of the coefficient of coherence unless the … of our general thesis that
estimation of the coefficient of:coher… Comparison of the coherence and signalto-noise estimates …

… noise, which could be random, coherent (with input or output) or a combination of both,
depending on its source. The estimation … (resulting from measurement noise among other sources…

… We consider the problem of estimating a deterministic sparse … noise and A is a given
deterministic dictionary. We provide theoretical performance guarantees for three sparse estimation …

… eg, for the confidence in their estimation, the ability to mitigate … of estimating the coherence,
or unitarity, of noise generally … Pauli noise and develop a protocol allowing us to estimate the …