三粒子纠缠W态隐形传态的正交完备基展开与算符变换

The expansion of orthogonal complete set and transformation operator in the teleportation of a three-particle entangled W state

先是对利用单个两粒子及单个三粒子纠缠态作为量子信道实现三粒子纠缠W态的隐形传态方案进行讨论.然后由波函数的叠加原理与算符变换出发,将体系的总量子量按照Bell基展开实现量子隐形传态,给出了变换算符与实际操作算符之间的联系.进一步验证出变换算符可逆是成功实现三粒子纠缠W态隐形传态的必要条件的结论.

Firstly,we discuss a scheme for teleportation of a three-particle entangled W state via a two-particle and a three-particle entangled state. Then,in accordance with the principle of superposition and transformation operators,the three-particle entangled W state is expanded by Bell bases and the teleportation can be realized. The relation of transformation operators with unitary operation is discussed. The necessary condition for realizing the teleportation is that the transformation operators have inverse operators.