Unambiguous discrimination of mixed quantum states |
| |
| Affiliation: | State Key Laboratory of Intelligent Technology and Systems, Department of Computer Science and Technology Tsinghua University, Beijing 100084, China |
| |
| Abstract: | The problem of unambiguous discrimination between mixed quantum states is addressed by isolating the part of each mixed state which has no contribution to discrimination and by employing the strategy of set discrimination of pure states. A necessary and sufficient condition of unambiguous mixed state discrimination is presented. An upper bound of the efficiency is also derived. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
