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- W1915672498 abstract "It is known that maximally entangled Bell state and three-qubit W-type states are very useful in various quantum information processing task. Thus the problem of preparation of these type of states is very important in quantum information theory. But the factor which prohibit the generation of the above mentioned pure states shared between two and three distant partners is decoherence. When we send one qubit, from a two qubit state, through decoherence channel like amplitude damping channel, the purity of the qubit is lost and it ends up with a mixed state. Therefore it is very difficult to keep the pure maximally entangled state in a maximally entangled pure state or in an entangled state with high entanglement. In this work we have provided a method by which one can generate experimentally a maximally entangled Bell states shared between distant parties with a non-zero probability when a qubit, from a two qubit general state, passes through decoherence channel. Therefore, despite of the fact that qubit is interacting with the noisy channel, we are able to generate Bell state shared between two distant partners. Further, we have shown that it is possible to generate pure three-qubit W-type states shared between three distant partners using economical quantum cloning machine and weak-measurement based feed-forward control scheme, even though the second and third qubit is interacting with the noisy channel. Lastly, we have shown that the generated three-qubit W-type states can be used in teleporting one of the two non-orthogonal states." @default.
- W1915672498 created "2016-06-24" @default.
- W1915672498 creator A5036451969 @default.
- W1915672498 date "2015-04-29" @default.
- W1915672498 modified "2023-09-27" @default.
- W1915672498 title "Feed-forward control scheme generate Bell states and three-qubit W-type states when qubits passes through decoherence channel" @default.
- W1915672498 cites W1530682388 @default.
- W1915672498 hasPublicationYear "2015" @default.
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