| Autor: |
Nakahira, Kenji, Kato, Kentaro, Usuda, Tsuyoshi Sasaki |
| Rok vydání: |
2017 |
| Předmět: |
|
| Zdroj: |
Phys. Rev. A 97, 022320 (2018) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevA.97.022320 |
| Popis: |
It is well known that a minimum error quantum measurement for arbitrary binary optical coherent states can be realized by a receiver that comprises interfering with a coherent reference light, photon counting, and feedback control. We show that, for ternary optical coherent states, a minimum error measurement cannot always be realized by such a receiver. The problem of finding an upper bound on the maximum success probability of such a receiver can be formulated as a convex programming. We derive its dual problem and numerically find the upper bound. At least for ternary phase-shift keyed coherent states, this bound does not reach that of a minimum error measurement. |
| Databáze: |
arXiv |
| Externí odkaz: |
|
