Ambiguous Discrimination of General Quantum Operations |
| |
| Authors: | LI L&# -Jun |
| |
| Affiliation: | Department of Computer Science and Engineering, Hanshan Normal University, Chaozhou 521041, China |
| |
| Abstract: | We consider the problem of discriminating general quantum operations. Using the definition of mapping operator to vector, and by some calculating skills, we derive an explicit formulation as a new bound on the minimum-error probability for ambiguous discrimination between arbitrary m quantum operations. This formulation consists only of Kraus-operators, the dimension, and the priori probabilities of the discriminated quantum operations, and is independent of input states. To some extent, we further generalize the bounds on the minimum-error probability for discriminating mixed states to quantum operations. |
| |
| Keywords: | quantum communication operations discrimination explicit lower bound |
|
| 点击此处可从《理论物理通讯》浏览原始摘要信息 |
|
点击此处可从《理论物理通讯》下载全文 |
|
