Chinese Journal of Quantum Electronics, Volume. 23, Issue 4, 489(2006)
Implementing a non-local SWAP operation on two entangled pairs by a three-qubit entangled state and a Bell state
We propose a theoretical scheme for the implementation of a non-local quantum SWAP operation on two spatially separated entangled pairs by a three-qubit entangled state and a Bell state,and we show that the operation can swap two qubits of these entangled pairs. The feature of the scheme is that a third side is included,who may participate the process of quantum non-local implementation as a supervisor. Furthermore,when the quantum channel is partially entangled,the third one can rectify the state distorted by imperfect quantum channel.
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CHEN Li-bing, LIU Yu-hua, BAI Yi-hong, LU Hong. Implementing a non-local SWAP operation on two entangled pairs by a three-qubit entangled state and a Bell state[J]. Chinese Journal of Quantum Electronics, 2006, 23(4): 489
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Received: --
Accepted: --
Published Online: Jun. 13, 2010
The Author Email: Li-bing CHEN (chlibing@foshan.net)
CSTR:32186.14.