The study of solutions to the following problem: given an unknown D-dimensional quantum mixed state ρ, as well as known two-outcome measurements E1,...,EM, estimate the probability that Ei accepts ρ, to within additive error ε, for each of the M measurements. How many copies of ρ are needed to achieve this, with high probability?
Questions tagged [shadow-tomography]
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Are classical shadows useful?
according to the paper https://doi.org/10.1038/s42254-022-00535-2 , the advantage of classical shadows is doing measurements first and asking questions later.
But in real experiments, who would do measurement first and ask questions later, being…
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