Minimum error discrimination problem for pure qubit states
Samsonov, Boris F
Original · EN
The necessary and sufficient conditions for minimization of the generalized rate error for discriminating among N pure qubit states are reformulated in terms of Bloch vectors representing the states. For the direct optimization problem an algorithmic solution to these conditions is indicated. A solution to the inverse optimization problem is given. General results are widely illustrated by particular cases of equiprobable states and N=2,3,4 pure qubit states given with different prior probabilities.
English translation
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