CAJ | 학술논문

利用两个二量子位的海森堡XX链作为信道,进行两粒子热纠缠态的隐形传递.在一定的外界条件下,得到非零的纠缠度以及保真度大于2/3.最后发现,当磁场B较弱、温度T很低的时候,以海森堡热纠缠混合态作为量子信道的隐形传递要优越于经典信道.
이용량개이양자위적해삼보XX련작위신도,진행량입자열규전태적은형전체.재일정적외계조건하,득도비령적규전도이급보진도대우2/3.최후발현,당자장B교약、온도T흔저적시후,이해삼보열규전혼합태작위양자신도적은형전체요우월우경전신도.
Quantum teleportation,using thermally entangled state of two two-qubit Heisenberg XX chain as resource,with nonzero thermal entanglement and fidelity better than any classical communication protocol is possible.It is found that the entanglement teleportation of the mixed channel is superior to the classical communication when the magnetic field B is feebleness and the temperature T is very low.