Abstract
A theorem has been proved to understand the fact that how many copies of the unknown quantum state does one need to be able to distinguish the coset state with high reliability. It is proved that for every distribution there exists a POVM attaining success probability. By using the game-theoretic trick, it has been proved that the existence of a measurement with worst-case.
| Original language | English |
|---|---|
| Article number | 6121991 |
| Pages (from-to) | 1-2 |
| Number of pages | 2 |
| Journal | IEEE Transactions on Information Theory |
| Volume | 58 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 2012 |
| Externally published | Yes |
Keywords
- Pretty-good measurement
- quantum detection
- quantum state discrimination
- worst-case minimum-error quantum detection
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