Online learning of quantum states

ADVANCES IN NEURAL INFORMATION PROCESSING SYSTEMS 31 (NIPS 2018), pp. 1240192019.

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Abstract:

Suppose we have many copies of an unknown n-qubit state rho. We measure some copies of rho 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 omega(t) about the state rho, using the outcomes of the previous measurements. We show that it is poss...More

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