Minimum error discrimination problem for pure qubit states
| Autor: | Samsonov, Boris F |
|---|---|
| Rok vydání: | 2009 |
| Předmět: | |
| Zdroj: | PHYSICAL REVIEW A 80, 052305 (2009) (11pp) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevA.80.052305 |
| Popis: | 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. Comment: English is corrected thanks to PRA editor |
| Databáze: | arXiv |
| Externí odkaz: |
|