| Li Hui,Li Chun-wen,Jiang Min.Programmable quantum logic gates using teleportation with non-maximally entangled states[J].Optoelectronics Letters,2012,8(1):63-66 |
| Programmable quantum logic gates using teleportation with non-maximally entangled states |
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| Abstract: |
| A scheme is proposed for involving programmable quantum logic gates via teleportation, which is a unique technique in quantum
mechanics. In our scheme, considering the inevitable decoherence caused by noisy environment, the quantum states are not maximally
entangled. We show the implementation of single qubit quantum gates and controlled-NOT (CNOT) gate, which are universal quantum
gates. Hence, any quantum gate can be implemented by using teleportation with non-maximally entangled states. Furthermore,
two schemes in differet connections of universal gates are proposed and compared, and our results show the parallel connection
outperforms the cascade connection. |
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| This work has been supported by the National Natural Science Foundation of China (No. 60904034 and 61104002) |
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