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| 1 | Implementing two optimal economical quantum cloning with superconducting quantum interference devices in a cavity显示文摘We propose a unified scheme to implement the optimal 1→ 3economical phase-covariant quantum cloning and optimal 1→3 economical real state cloning with superconducting quantum interference devices (SQUIDs) in a cavity.During this process,no transfer of quantum information between the SQUIDs and cavity is required.The cavity field is only virtually excited.The scheme is insensitive to cavity decay.Therefore,the scheme can be experimentally realized in the range of current cavity QED techniques. | YE Liu HU GuiYu LI AiXia | 2011 | Science China(Physics,Mechanics & Astronomy)2011，54，1： | 3 |
| 2 | Informative gene selection using the Algebraic Connectivity Strength of Point and Scoring Criteria显示文摘This paper presents a novel method that integrates the Algebraic Connectivity Strength of Point(ACSP) and Scoring Criteria to identify genes associated with tumor type.First,for each gene,the ACSP is used to identify reliable expression levels of the gene in all the samples.The informative genes are then selected using Scoring Criteria based on these reliable expression levels.Finally,the Support Vector Machine(SVM) classifier is used to classify the two datasets of gene expression profiling.The results show that the informative genes selected by the proposed method have higher credibility than those selected by Scoring Criteria alone. | WANG Nian SU LiangLiang TANG Jun YE AiXia | 2013 | Chinese Science Bulletin2013，58，6： | 2 |
| 3 | Implementing ancilla-free phase covariant quantum cloning with atoms trapped in cavities显示文摘We propose a scheme to implement ancilla-free 1 to 2 optimal phase covariant quantum cloning with atoms trapped in cavities.In the scheme the W-class state of three atoms,which are individually trapped in three spatially separated cavities,is deterministically generated.Then by the use of this W-class state and detection of the atomic state,an optimal ancilla-free 1 to 2 phase-covariant quantum cloning between two spatially separated trapped atoms can be realized.The scheme is robust for atomic spontaneous decay,cavity decay and photon leakage out of the fiber.In principle,an M+1-atom W-class state can be generated by using such an approach.Thus this scheme also can be generalized to implement 1 to M ancilla-free phase-covariant quantum cloning. | YE Liu XIONG Wei LI AiXia GUO GuangCan | 2011 | Science China(Physics,Mechanics & Astronomy)2011，54，2： | 1 |
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