Quantum teleportation can transfer an unknown quantum state between distant quantum nodes,which holds great promise in enabling large-scale quantum networks.To advance the full potential of quantum teleportation,quant...Quantum teleportation can transfer an unknown quantum state between distant quantum nodes,which holds great promise in enabling large-scale quantum networks.To advance the full potential of quantum teleportation,quantum states must be faithfully transferred at a high rate over long distance.Despite recent impressive advances,a high-rate quantum teleportation system across metropolitan fiber networks is extremely desired.Here,we demonstrate a quantum teleportation system which transfers quantum states carried by independent photons at a rate of 7.1±0.4 Hz over 64-km-long fiber channel.An average single-photon fidelity of≥90.6±2.6%is achieved,which exceeds the maximum fidelity of 2/3 in classical regime.Our result marks an important milestone towards quantum networks and opens the door to exploring quantum entanglement based informatic applications for the future quantum internet.展开更多
The management of infected wounds is always of great significance and urgency in clinical and biomedicalfields.Recent efforts in this area are focusing on the development of functional wound patches with effective antib...The management of infected wounds is always of great significance and urgency in clinical and biomedicalfields.Recent efforts in this area are focusing on the development of functional wound patches with effective antibacterial,drug delivery,and sensor properties.Here,we present novel hyaluronic acid(HA)microneedle patches with these features by encapsulating aminobenzeneboronic acid-modified gold nanoclusters(A-GNCs)for infected wound management.The A-GNCs loaded microneedle patches were derived from negative-mold replication and showed high mechanical strength to penetrate the skin.The release of the A-GNCs was realized by the degradation of HA,and the self-monitor of the released actives was based on the dynamic bright orangefluorescence emitted from A-GNCs under ultravio-let radiation.As the A-GNCs could destroy bacteria membranes,the microneedle patches were with excellent in vitro antibiosis ability.Based on these features,we have demonstrated the bacteria inhibition,residual drug self-monitoring,and wound healing promotion abilities of the microneedle patches in Escherichia coli-or Staphylococcus aureus-infected wound management.These results indicated the great potential of such A-GNCs loaded microneedle patches for clinical applications.展开更多
Dysprosium-doped orthorhombic yttrium aluminate(Dy:YAlO3or Dy:YAP)single crystals were grown by the Czochralski method with a size ofΦ43 mm×150 mm.Based on the measurements of spectra and theoretical analysis,th...Dysprosium-doped orthorhombic yttrium aluminate(Dy:YAlO3or Dy:YAP)single crystals were grown by the Czochralski method with a size ofΦ43 mm×150 mm.Based on the measurements of spectra and theoretical analysis,the white-light emission was investigated with different doping concentrations.The optimal white emission was achieved at Dy^(3+)doping concentration of 1.0%under 450 nm excitation.Combining with residual pumping light,the white-light output was successfully obtained with Commission Internationale de l'Eclairage(CIE)coordinates x=0.3797,y=0.3685,the color temperature of 4000 K,and the largest fluorescence quantum yield of 46.9%.With the development of the GaN laser diode,the Dy:YAP single crystal has proven applicable in white-light-emitting diodes.展开更多
基金This work was supported by the National Key Research and Development Program of China(Nos.2018YFA0307400,2018YFA0306102)National Natural Science Foundation of China(Nos.61775025,91836102,U19A2076,62005039)+1 种基金Innovation Program for Quantum Science and Technology(No.2021ZD0301702)Sichuan Science and Technology Program(Nos.2021YFSY0066,2021YFSY0062,2021YFSY0063,2021YFSY0064,2021YFSY0065).The authors thank X.X.H,Y.X.L and L.B.Z from the Information Center of the University of Electronic Science and Technology of China(UESTC)for providing access to the campus fiber network and for the help during the experiment.
文摘Quantum teleportation can transfer an unknown quantum state between distant quantum nodes,which holds great promise in enabling large-scale quantum networks.To advance the full potential of quantum teleportation,quantum states must be faithfully transferred at a high rate over long distance.Despite recent impressive advances,a high-rate quantum teleportation system across metropolitan fiber networks is extremely desired.Here,we demonstrate a quantum teleportation system which transfers quantum states carried by independent photons at a rate of 7.1±0.4 Hz over 64-km-long fiber channel.An average single-photon fidelity of≥90.6±2.6%is achieved,which exceeds the maximum fidelity of 2/3 in classical regime.Our result marks an important milestone towards quantum networks and opens the door to exploring quantum entanglement based informatic applications for the future quantum internet.
基金National Key Research and Development Program of China,Grant/Award Number:2020YFA0908200National Natural Science Foundation of China,Grant/Award Numbers:52073060,61927805+1 种基金Guangdong Basic and Applied Basic Research Foundation,Grant/Award Number:2021B1515120054Shenzhen Fundamental Research Program,Grant/Award Number:JCYJ20210324133214038。
文摘The management of infected wounds is always of great significance and urgency in clinical and biomedicalfields.Recent efforts in this area are focusing on the development of functional wound patches with effective antibacterial,drug delivery,and sensor properties.Here,we present novel hyaluronic acid(HA)microneedle patches with these features by encapsulating aminobenzeneboronic acid-modified gold nanoclusters(A-GNCs)for infected wound management.The A-GNCs loaded microneedle patches were derived from negative-mold replication and showed high mechanical strength to penetrate the skin.The release of the A-GNCs was realized by the degradation of HA,and the self-monitor of the released actives was based on the dynamic bright orangefluorescence emitted from A-GNCs under ultravio-let radiation.As the A-GNCs could destroy bacteria membranes,the microneedle patches were with excellent in vitro antibiosis ability.Based on these features,we have demonstrated the bacteria inhibition,residual drug self-monitoring,and wound healing promotion abilities of the microneedle patches in Escherichia coli-or Staphylococcus aureus-infected wound management.These results indicated the great potential of such A-GNCs loaded microneedle patches for clinical applications.
基金supported by the National Natural Science Foundation of China(Nos.92163207,52002272,61835014,51890860,51890864,and 51890865)。
文摘Dysprosium-doped orthorhombic yttrium aluminate(Dy:YAlO3or Dy:YAP)single crystals were grown by the Czochralski method with a size ofΦ43 mm×150 mm.Based on the measurements of spectra and theoretical analysis,the white-light emission was investigated with different doping concentrations.The optimal white emission was achieved at Dy^(3+)doping concentration of 1.0%under 450 nm excitation.Combining with residual pumping light,the white-light output was successfully obtained with Commission Internationale de l'Eclairage(CIE)coordinates x=0.3797,y=0.3685,the color temperature of 4000 K,and the largest fluorescence quantum yield of 46.9%.With the development of the GaN laser diode,the Dy:YAP single crystal has proven applicable in white-light-emitting diodes.
