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Efficient Quantum Secure Communication Protocol by Rearranging Particle Orders 被引量:2
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作者 GAO Gan 《Communications in Theoretical Physics》 SCIE CAS CSCD 2009年第11期845-847,共3页
We propose a quantum secure communication protocol by using three-particle GHZ states. In this protocol, we utilize the ideas of the rearranging orders and the sequence transmission. The sender of messages, Alice, fir... We propose a quantum secure communication protocol by using three-particle GHZ states. In this protocol, we utilize the ideas of the rearranging orders and the sequence transmission. The sender of messages, Alice, first disturbs the particle orders in an initial sequence, and then sends the sequence of the disturbed orders to the receiver of messages, Bob. Under Alice's introduction, Bob rearranges the sequence back to the initial sequence. By making a GHZ state measurement on each of the three particles in turn, Bob can attain Alice's secret messages. In addition, we still calculate the efficiency of our three-particle GHZ protocol and generalize it to the case using multi-particle GHZ state. 展开更多
关键词 rearranging orders quantum secure communication
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Cryptanalysis of efficient semi-quantum secret sharing protocol using single particles
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作者 高甘 《Chinese Physics B》 SCIE EI CAS CSCD 2024年第4期254-257,共4页
In paper[Chin.Phys.B 32070308(2023)],Xing et al.proposed a semi-quantum secret sharing protocol by using single particles.We study the security of the proposed protocol and find that it is not secure,that is,the three... In paper[Chin.Phys.B 32070308(2023)],Xing et al.proposed a semi-quantum secret sharing protocol by using single particles.We study the security of the proposed protocol and find that it is not secure,that is,the three dishonest agents,Bob,Charlie and Emily can collude to obtain Alice's secret without the help of David. 展开更多
关键词 security loophole rearranging orders semi-quantum secret sharing single particles
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Evolutionary rates of mitochondrial sequences and gene orders in Spirurina(Nematoda)are episodic but synchronised 被引量:2
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作者 Hong Zou Hong-Peng Lei +6 位作者 Rong Chen Fang-Lin Chen Wen-Xiang Li Ming Li Dong Zhang Ivan Jakovlic Gui-Tang Wang 《Water Biology and Security》 2022年第2期49-59,共11页
In contrast to highly conserved mitogenomic architecture in most metazoan lineages,which indicates that rearrangement events are generally strongly selected against,a limited number of often unrelated lineages exhibit... In contrast to highly conserved mitogenomic architecture in most metazoan lineages,which indicates that rearrangement events are generally strongly selected against,a limited number of often unrelated lineages exhibit highly elevated architectural evolution rates.The underlying reasons for this discontinuity in the mitogenomic evolution remain unknown.Previously we sequenced the mitochondrial genome of the first Camallanoidea species,Camallanus cotti(Nematoda:Chromadorea:Spirurina:Camallanidae),and found that it exhibited a highly disrupted architecture.We hypothesised that disrupted architecture might be a synapomorphic feature of the sister-clades Camallanoidea and Dracunculoidea.In this study,we sequenced mitogenomes of three freshwater fish-parasitic nematodes:Camallanus lacustris(Camallanidae),and two Philometridae(Dracunculoidea)species,Clavinema parasiluri,and Philometra sp.In partial agreement with the working hypothesis,both Camallanoidea species had exceptionally large mitogenomes of 18–19 Kbp,albeit the underlying reasons differed:in C.lacustris it was the existence of a single enlarged noncoding region of5.5 Kbp.A segment of this region exhibited an inverted base composition skew,which is indicative of a sequence inversion or recombination event.Camallanidae is the second identified chromadorean(first for Spirurina)family that exhibits within-family protein-coding gene rearrangements,and the absence of trnL1 and trnF may be a synapomorphy for Camallanoidea.The underlying reason for the disrupted architecture of Camallanidae does not appear to be a particular event shared by their common ancestor,but rather an underlying mechanism that makes disruptive events more likely in this lineage.In disagreement with the working hypothesis,Spiruromorpha and Oxyuridomorpha exhibited even more highly rearranged gene orders and greater overall branch lengths than Camallanomorpha.However,withininfraorder architecture was highly conserved and leaf nodes very short.This indicates that common ancestors of Spiruromorpha and Oxyuridomorpha clades underwent a period of rapid mitochondrial evolution(both sequence and architecture),followed by a stabilisation after the taxonomic radiation.In contrast to this,Camallanomorpha,and particularly Camallanidae,appear to have entered a period of elevated evolutionary rates after the initial radiations of these two taxa.As a result of this evolutionary discontinuity,there was a strong correlation between the gene order rearrangement rate(GORR)and the overall branch length(0.81),but there was no correlation between the strength of purifying selection(ω?dN/dS)and the overall branch lengths(0.05)and GORR(0.04).These findings have important repercussions for future phylogenetic and other evolutionary studies of Spirurina. 展开更多
关键词 Branch length Gene order rearrangement Inversion Recombination Molecular clock Episodic evolution Camallanidae Philometridae Camallanomorpha
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