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Space-to-Ground Quantum Key Distribution Using a Small-Sized Payload on Tiangong-2 Space Lab
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作者 Sheng-Kai Liao Jin Lin +33 位作者 Ji-Gang Ren Wei-Yue Liu Jia Qiang Juan Yin Yang Li Qi Shen Liang Zhang Xue-Feng Liang Hai-Lin Yong Feng-Zhi Li Ya-Yun Yin Yuan Cao Wen-Qi Cai Wen-Zhuo Zhang Jian-Jun Jia Jin-Cai Wu Xiao-Wen Chen Shan-Cong Zhang Xiao-Jun Jiang Jian-Feng Wang Yong-Mei Huang Qiang Wang Lu ma Li Li Ge-Sheng Pan Qiang Zhang Yu-Ao Chen Chao-Yang Lu Nai-Le Liu xiongfeng ma Rong Shu Cheng-Zhi Peng Jian-Yu Wang Jian-Wei Pan 《Chinese Physics Letters》 SCIE CAS CSCD 2017年第9期18-23,共6页
Quantum technology establishes a foundation for secure communication via quantum key distribution (QKD). In the last two decades, the rapid development of QKD makes a global quantum communication network feasible. I... Quantum technology establishes a foundation for secure communication via quantum key distribution (QKD). In the last two decades, the rapid development of QKD makes a global quantum communication network feasible. In order to construct this network, it is economical to consider small-sized and low-cost QKD payloads, which can be assembled on satellites with different sizes, such as space stations. Here we report an experimental demonstration of space-to-ground QKD using a small-sized payload, from Tiangong-2 space lab to Nanshan ground station. The 57.9-kg payload integrates a tracking system, a QKD transmitter along with modules for synchronization, and a laser communication transmitter. In the space lab, a 50MHz vacuum+weak decoy-state optical source is sent through a reflective telescope with an aperture of 200mm. On the ground station, a telescope with an aperture of 1200mm collects the signal photons. A stable and high-transmittance communication channel is set up with a high-precision bidirectional tracking system, a polarization compensation module, and a synchronization system. When the quantum link is successfully established, we obtain a key rate over 100bps with a communication distance up to 719km. Together with our recent development of QKD in daylight, the present demonstration paves the way towards a practical satellite-constellation-based global quantum secure network with small-sized QKD payloads. 展开更多
关键词 QKD Space-to-Ground Quantum Key Distribution Using a Small-Sized Payload on Tiangong-2 Space Lab
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Noble-metal-free plasmonic MoO_(3-x)-based S-scheme heterojunction for photocatalytic dehydrogenation of benzyl alcohol to storable H2 fuel and benzaldehyde 被引量:1
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作者 Yingcong Wei Qiqi Zhang +7 位作者 Ying Zhou xiongfeng ma Lele Wang Yanjie Wang Rongjian Sa Jinlin Long Xianzhi Fu Rusheng Yuan 《Chinese Journal of Catalysis》 SCIE EI CAS CSCD 2022年第10期2665-2677,共13页
Simultaneous generation of H_(2) fuel and value-added chemicals has attracted increasing attention since the photogenerated electrons and holes can be both employed to convert solar light into chemical energy.Herein,f... Simultaneous generation of H_(2) fuel and value-added chemicals has attracted increasing attention since the photogenerated electrons and holes can be both employed to convert solar light into chemical energy.Herein,for realizing UV-visible-NIR light driven dehydrogenation of benzyl alcohol(BA)into benzaldehydes(BAD)and H_(2),a novel localized surface plasmon resonance(LSPR)enhanced S-scheme heterojunction was designed by combining noble-metal-free plasmon MoO_(3-x) as oxidation semiconductor and Zn_(0.1)Cd_(0.9)S as reduction semiconductor.The photoredox system of Zn_(0.1)Cd_(0.9)S/MoO_(3-x) displayed an unconventional reaction model,in which the BA served as both electron donor and acceptor.The S-scheme charge transfer mechanism induced by the formed internal electric field enhanced the redox ability of charge carriers thermodynamically and boosted charge separation kinetically.Moreover,due to the LSPR effect of MoO_(3-x) nanosheets,Zn_(0.1)Cd_(0.9)S/MoO_(3-x) photocatalysts exhibited strong absorption in the region of full solar spectrum.Therefore,the Zn_(0.1)Cd_(0.9)S/MoO_(3-x) composite generated H_(2) and BAD simultaneously via selective oxidation of BA with high production(34.38 and 33.83 mmol×g^(–1) for H_(2) and BAD,respectively)upon full solar illumination.Even under NIR light irradiation,the H_(2) production rate could up to 94.5 mmol×g^(–1)×h^(–1).In addition,the Zn_(0.1)Cd_(0.9)S/MoO_(3-x) composite displayed effective photocatalytic H_(2) evolution rate up to 149.2 mmol×g^(–1)×h^(–1) from water,which was approximate 6 times that of pure Zn_(0.1)Cd_(0.9)S.This work provides a reference for rational design of plasmonic S-scheme heterojunction photocatalysts for coproduction of high-value chemicals and solar fuel production. 展开更多
关键词 Zn_(0.1)Cd_(0.9)S/MoO_(3-x)S-scheme HETEROJUNCTION Localized surface plasmon resonance Benzyl alcohol oxidation Hydrogen generation Full-spectrum light response
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CIDP: a multi-functional platform for designing CRISPR sgRNAs
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作者 Dong Xu Jin Zhang +5 位作者 Xianjia Zhao Yuze Hou Heling Jiang Wenchuang He xiongfeng ma Weihua Pan 《Horticulture Research》 SCIE CSCD 2023年第7期1-3,共3页
Dear Editor,Compared with traditional technologies affecting gene expression,changing DNA sequences of target genes is one of the most outstanding characters of CRISPR(Clustered Regularly Interspaced Short Palindromic... Dear Editor,Compared with traditional technologies affecting gene expression,changing DNA sequences of target genes is one of the most outstanding characters of CRISPR(Clustered Regularly Interspaced Short Palindromic Repeats).Single-guide RNAs(sgRNAs)guiding endonuclease Cas to target sites is a crucial step of CRISPR-Cas system for changing DNA sequences.An ideal sgRNA should only bind to the target gene.However,similar sequences of non-target sites can also be recognized leading to off-target effects[1]. 展开更多
关键词 DESIGNING REGULAR FUNCTIONAL
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Genomic divergence in cotton germplasm related to maturity and heterosis 被引量:2
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作者 Shoupu He Gaofei Sun +9 位作者 Longyu Huang Daigang Yang Panhong Dai Dayun Zhou Yuzhen Wu xiongfeng ma Xiongming Du Shoujun Wei Jun Peng Meng Kuang 《Journal of Integrative Plant Biology》 SCIE CAS CSCD 2019年第8期929-942,共14页
Commercial varieties of upland cotton(Gossypium hirsutum)have undergone extensive breeding for agronomic traits,such as fiber quality,disease resistance,and yield.Cotton breeding programs have widely used Chinese upla... Commercial varieties of upland cotton(Gossypium hirsutum)have undergone extensive breeding for agronomic traits,such as fiber quality,disease resistance,and yield.Cotton breeding programs have widely used Chinese upland cotton source germplasm(CUCSG)with excellent agronomic traits.A better understanding of the genetic diversity and genomic characteristics of these accessions could accelerate the identification of desirable alleles.Here,we analyzed 10,522 high-quality singlenucleotide polymorphisms(SNP)with the CottonSNP63 K microarray in 137 cotton accessions(including 12 hybrids of upland cotton).These data were used to investigate the genetic diversity,population structure,and genomic characteristics of each population and the contribution of these loci to heterosis.Three subgroups were identified,in agreement with their knownpedigrees,geographical distributions,and times since introduction.For each group,we identified lineagespecific genomic divergence regions,which potentially harbor key alleles that determine the characteristics of each group,such as early maturity-related loci.Investigation of the distribution of heterozygous loci,among 12 commercial cotton hybrids,revealed a potential role for these regions in heterosis.Our study provides insight into the population structure of upland cotton germplasm.Furthermore,the overlap between lineagespecific regions and heterozygous loci,in the high-yield hybrids,suggests a role for these regions in cotton heterosis. 展开更多
关键词 UPLAND COTTON fiber quality genetic diversity
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GhAP1-D3 positively regulates flowering time and early maturity with no yield and fiber quality penalties in upland cotton 被引量:1
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作者 Caixiang Wang Juanjuan Liu +7 位作者 Xiaoyu Xie Ji Wang Qi ma Pengyun Chen Delong Yang xiongfeng ma Fushun Hao Junji Su 《Journal of Integrative Plant Biology》 SCIE CAS CSCD 2023年第4期985-1002,共18页
Flowering time(FTi)is a major factor determining how quickly cotton plants reach maturity.Early maturity greatly affects lint yield and fiber quality and is crucial for mechanical harvesting of cotton in northwestern ... Flowering time(FTi)is a major factor determining how quickly cotton plants reach maturity.Early maturity greatly affects lint yield and fiber quality and is crucial for mechanical harvesting of cotton in northwestern China.Yet,few quantitative trait loci(QTLs)or genes regulating early maturity have been reported in cotton,and the underlying regulatory mechanisms are largely unknown.In this study,we characterized 152,68,and 101 loci that were significantly associated with the three key early maturity traits—FTi,flower and boll period(FBP)and whole growth period(WGP),respectively,via four genome-wide association study methods in upland cotton(Gossypium hirsutum).We focused on one major early maturity-related genomic region containing three single nucleotide polymorphisms on chromosome D03,and determined that GhAP1-D3,a gene homologous to Arabidopsis thaliana APETALA1(AP1),is the causal locus in this region.Transgenic plants overexpressing GhAP1-D3 showed significantly early flowering and early maturity without penalties for yield and fiber quality compared to wild-type(WT)plants.By contrast,the mutant lines of GhAP1-D3 generated by genome editing displayed markedly later flowering than the WT.GhAP1-D3 interacted with GhSOC1(SUPPRESSOR OF OVEREXPRESSION OF CONSTANS 1),a pivotal regulator of FTi,both in vitro and in vivo.Changes in GhAP1-D3 transcript levels clearly affected the expression of multiple key flowering regulatory genes.Additionally,DNA hypomethylation and high levels of H3K9ac affected strong expression of GhAP1-D3 in early-maturing cotton cultivars.We propose that epigenetic modifications modulate GhAP1-D3 expression to positively regulate FTi in cotton through interaction of the encoded GhAP1 with GhSOC1 and affecting the transcription of multiple flowering-related genes.These findings may also lay a foundation for breeding early-maturing cotton varieties in the future. 展开更多
关键词 upland cotton early maturity genome‐wide association studies QTL AP1 flowering time
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Scalable fast benchmarking for individual quantum gates with local twirling
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作者 YIHONG ZHANG WENJUN YU +2 位作者 PEI ZENG GUODING LIU xiongfeng ma 《Photonics Research》 SCIE EI CAS CSCD 2023年第1期81-99,共19页
With the development of controllable quantum systems,fast and practical characterization of multi-qubit gates has become essential for building high-fidelity quantum computing devices.The usual way to fulfill this req... With the development of controllable quantum systems,fast and practical characterization of multi-qubit gates has become essential for building high-fidelity quantum computing devices.The usual way to fulfill this requirement via randomized benchmarking demands complicated implementation of numerous multi-qubit twirling gates.How to efficiently and reliably estimate the fidelity of a quantum process remains an open problem.This work thus proposes a character-cycle benchmarking protocol and a character-average benchmarking protocol using only local twirling gates to estimate the process fidelity of an individual multi-qubit operation.Our protocols were able to characterize a large class of quantum gates including and beyond the Clifford group via the local gauge transformation,which forms a universal gate set for quantum computing.We demonstrated numerically our protocols for a non-Clifford gate—controlled-(T X)and a Clifford gate—five-qubit quantum errorcorrecting encoding circuit.The numerical results show that our protocols can efficiently and reliably characterize the gate process fidelities.Compared with the cross-entropy benchmarking,the simulation results show that the character-average benchmarking achieves three orders of magnitude improvements in terms of sampling complexity. 展开更多
关键词 QUANTUM LOCAL CHARACTER
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Patterns of presence-absence variants in Upland cotton 被引量:1
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作者 Junfang Liu Xianliang Zhang +17 位作者 Lingling Dou Wei Li Xiaojian Zhou Yangai Liu Xiaoyu Pei Zhongying Ren Wensheng Zhang Huaizhu Li Wenbo Wang Changsong Zou Kunlun He Fei Zhang Wenyu ma Haihong Shang Hongbin Li Daigang Yang Guanghui Xiao xiongfeng ma 《Science China(Life Sciences)》 SCIE CAS CSCD 2020年第10期1600-1603,共4页
Dear Editor,Sources of genetic variations in genomes include small-scale sources(such as single-nucleotide polymorphisms(SNPs),insertions/deletions(InDels),and simple sequence repeats and larger-scale structural varia... Dear Editor,Sources of genetic variations in genomes include small-scale sources(such as single-nucleotide polymorphisms(SNPs),insertions/deletions(InDels),and simple sequence repeats and larger-scale structural variations(mainly presence-absence variants(PAVs))and copy number variants).PAVs are sequences that are either inserted or missing in genomes in comparison with a reference sequence or genome.PAVs can have a much longer sequence than SNPs and InDels,as illustrated in the human genome(Conrad et al.,2010).PAVs are important genomic structural variations that can directly affect genomic structure and key functional genes in the genome(Kumar et al.,2007).Moreover,the use of PAVs for studying quantitative traits has been valuable(Lam et al.,2010). 展开更多
关键词 TRAITS SEQUENCE INSERTION
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