In order to teleport an unknown two-par-ticle entangled state via a cluster state, a controlled teleportation schelre is proposed. It is shown that an unknown two-particle entangled state can be successfully transmitt...In order to teleport an unknown two-par-ticle entangled state via a cluster state, a controlled teleportation schelre is proposed. It is shown that an unknown two-particle entangled state can be successfully transmitted from the sender Alice to the receiver Bob with the help of the supervisor Charlie via the only one four-particle cluster state. The receiver can reconstruct the teleported state according to the lmasurement results of the sender and supervisor. Quantum Controlled-NOT （CNOT） gate and POVM are used, which have been accom-plished in a quantum experiment, so it is believed that this scheme will be realized by experirnent. By analysis, the success probability of the proposed scheme reaches 1.0.展开更多
Facing the ethical potentials of technology, there appears a new trend in technology assessment （TA） recently, which is techno-ethics embedment that aims embed ethical perspectives within the process of assessing an...Facing the ethical potentials of technology, there appears a new trend in technology assessment （TA） recently, which is techno-ethics embedment that aims embed ethical perspectives within the process of assessing and developing new technologies. There are two basic dimensions of this trend： the role of ethics and the status of technology. By referring these dimensions, I articulate two different TA modes of the techno-ethics embedment： One is the ethical technology assessment （eTA） that appears as a combination of an ethical judge with the objective technological force, while the other is the combination of an engaged ethical participant with an active technological mediator. Moreover, there is an ideal status of this trend that is an engaged ethical participant with an active technological mediator. As the thought of technology accompaniment shows, both the ＂agency＂ of human and technology will be embodied to the most in this ideal status of techno-ethics embedment.展开更多
基金The work was supported by the National Natural Science Foundation of China under Crant No. 61100205.
文摘In order to teleport an unknown two-par-ticle entangled state via a cluster state, a controlled teleportation schelre is proposed. It is shown that an unknown two-particle entangled state can be successfully transmitted from the sender Alice to the receiver Bob with the help of the supervisor Charlie via the only one four-particle cluster state. The receiver can reconstruct the teleported state according to the lmasurement results of the sender and supervisor. Quantum Controlled-NOT （CNOT） gate and POVM are used, which have been accom-plished in a quantum experiment, so it is believed that this scheme will be realized by experirnent. By analysis, the success probability of the proposed scheme reaches 1.0.
文摘Facing the ethical potentials of technology, there appears a new trend in technology assessment （TA） recently, which is techno-ethics embedment that aims embed ethical perspectives within the process of assessing and developing new technologies. There are two basic dimensions of this trend： the role of ethics and the status of technology. By referring these dimensions, I articulate two different TA modes of the techno-ethics embedment： One is the ethical technology assessment （eTA） that appears as a combination of an ethical judge with the objective technological force, while the other is the combination of an engaged ethical participant with an active technological mediator. Moreover, there is an ideal status of this trend that is an engaged ethical participant with an active technological mediator. As the thought of technology accompaniment shows, both the ＂agency＂ of human and technology will be embodied to the most in this ideal status of techno-ethics embedment.
