CAJ | 학술논문

提出一种利用部分纠缠粒子对作为量子通道实现量子隐形传态的方案.在此方案中,若发送者施一旋转操作于被传态的粒子并对该粒子和她拥有的部分纠缠粒子对之一实施计算基测量,则该粒子所处的未知量子态被传送给接收者,其态的保真度为1,成功几率与部分纠缠粒子对的两个Schmidt系数有关.此方案可推广到隐形传送N粒子的未知量子态.
제출일충이용부분규전입자대작위양자통도실현양자은형전태적방안.재차방안중,약발송자시일선전조작우피전태적입자병대해입자화저옹유적부분규전입자대지일실시계산기측량,칙해입자소처적미지양자태피전송급접수자,기태적보진도위1,성공궤솔여부분규전입자대적량개Schmidt계수유관.차방안가추엄도은형전송N입자적미지양자태.
A scheme for teleporting an unknown quantum state via a partially entangled particle pair is proposed. We show that teleportation can be successful realized with unit fidelity but less than unit probability if the sender performs a rotational operation on the teleported qubit and then performs computation basis measurements on the teleported particle and the half of the entangled particle pair respectively. The probability of successful teleportation is determined by both Schmidt coefficients of the entangled pair. This method can be generalized to the teleportation of an arbitrary and unknown multi-qubit state.