We derive the general discrimination of quantum states chosen from a certain set, given an initial M copies of each state, and obtain the matrix inequality which describes the bound between the maximum probability of correctly determining and that of error. The former works are special cases of our
Quantum Limited State Discrimination
โ Scribed by Stephen M. Barnett
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 136 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0015-8208
No coin nor oath required. For personal study only.
โฆ Synopsis
Quantum theory restricts our ability to determine the state of a physical system. This is true even if we know for certain that it was prepared in one of a known set of possible states. I describe two types of optimal strategy for state discrimination. These are (i) state discrimination with minimum probability of error and (ii) unambiguous or error-free state discrimination.
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