| Quantum Dense Coding in Multiparticle Entangled States via Local Measurements |
| |
| 作者姓名： | 陈建兰 匡乐满 |
| |
| 作者单位： | DepartmentofPhysics,HunanNormalUniversity,Changsha410081 |
| |
| 摘 要： | We study quantum dense coding between two arbitrarily fixed particles in a (N 2)-particle maxlmally-entangled states through introducing an auxiliary qubit and carrying out local measurements. It is shown that the transmitted classical information amount through such an entangled quantum channel is usually less than two classical bits. However, the information amount may reach two classical bits of information, and the classical information capacity is independent of the number of the entangled particles under certain conditions. The results offer deeper insight into quantum dense coding via quantum channels of multi-particle entangled states.
|
| 关 键 词： | QDC 量子密集编码 多体纠缠态 局域测量 经典信息传输理论 量子管 |
| 本文献已被 维普 等数据库收录！ |
|
