Online Learning of Quantum States
NeurIPS, pp. 8962-8972, 2018.
Suppose we have many copies of an unknown n-qubit state ρ. We measure some copies of ρ using a known two-outcome measurement E_1, then other copies using a measurement E_2, and so on. At each stage t, we generate a current hypothesis ωt about the state ρ, using the outcomes of the previous measurements. We show that it is possible to do t...More
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