CAJ | 학술논문

通过对五粒子团簇态新应用的研究,提出了一个经济和简单的二粒子任意态的可控隐形传态方案.在这个方案中,发送者(Alice)、控制者(Charlie)和接收者(Bob)共享一个五粒子团簇态,发送者只需要执行Bell基测量,而控制者也仅需要执行单粒子投影测量.接受者根据发送者和控制者的测量结果,对自己拥有的粒子做适当的幺正变换,就可以重建发送者的二粒子任意态.这个可控隐形传态方案是决定性的,成功的概率为100%.与使用相同的量子信道进行二粒子任意态的可控隐形传送方案相比,不需要执行多粒子的联合测量,从而使得这个方案更加简单.
통과대오입자단족태신응용적연구,제출료일개경제화간단적이입자임의태적가공은형전태방안.재저개방안중,발송자(Alice)、공제자(Charlie)화접수자(Bob)공향일개오입자단족태,발송자지수요집행Bell기측량,이공제자야부수요집행단입자투영측량.접수자근거발송자화공제자적측량결과,대자기옹유적입자주괄당적요정변환,취가이중건발송자적이입자임의태.저개가공은형전태방안시결정성적,성공적개솔위100%.여사용상동적양자신도진행이입자임의태적가공은형전송방안상비,불수요집행다입자적연합측량,종이사득저개방안경가간단.
A new application of the five-qubit cluster state is investigated for economic and simple controlled teleportation of an arbitrary two-qubit state. In this scheme, a five-qubit cluster state is shared by a sender (Alice), a controller (Charlie) and a receiver (Bob), and the sender only needs to perform Bell-state measurements and the controller performs a single-qubit projective measurement. The receiver can reconstruct the arbitrary two-qubit state by performing some appropriate unitary transformations on his qubits after he knows the measured results of both the sender and the controller. This controlled teleportation scheme is deterministic, and the probability of successful controlled teleportation is 100%. In comparison with the controlled teleportation scheme using the same quantum channel, the proposed scheme do not need to make multi-particle joint measurement that makes this scheme simpler.