【摘要】 研究了以一维海森堡XXX链作为量子通道,实现了两粒子纯态的量子隐形传送.为了表明传输效果,给出了传输过程中的平均保真度.发现当外加磁场较低,并且温度T小于2Jkln5时,平均保真度大于经典通道的传输极限值2/3.更多还原

【Abstract】 The teleportation of a two-qubit pure state through 1D Heisenberg XXX chain as a quantum channel is investigated.To quantify the degree of the teleportation,we give the average fidelity of the transmission.When the temperature T is lower than the value of 2Jkln5 with lower external magnetic field B,we get the fidelity larger than 2/3 which is the limited value of any classical communication.更多还原