0000000000276716

AUTHOR

Hao Yu

showing 3 related works from this author

Telecom-compatible, affordable and scalable quantum technologies

2022

The realistic implementation of quantum architectures relies on the development of scalable, resource-efficient platforms that are compatible with CMOS technologies as well as fiber networks. This work demonstrates novel schemes utilized for time-/frequency-bin entanglement generation and processing by leveraging existing telecommunications and integrated photonics infrastructures.

Settore ING-INF/02 - Campi ElettromagneticiIntegrated quantum optics complex photon states quantum frequency combs silicon-based chips microring resonators spiral waveguides integrated Mach-Zehnder interferometers discrete time and frequency modes photonic qubits and qudits
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3D Conformations of Thick Synthetic Polymer Chains Observed by Cryogenic Electron Microscopy.

2019

The backbone conformations of individual, unperturbed synthetic macromolecules have so far not been observed directly in spite of their fundamental importance to polymer physics. Here we report the dilute solution conformations of two types of linear dendronized polymers, obtained by cryogenic transmission electron stereography and tomography. The three-dimensional trajectories show that the wormlike chain model fails to adequately describe the scaling of these thick macromolecules already beyond a few nanometers in chain length, in spite of large apparent persistence lengths and long before a signature of self-avoidance appears. This insight is essential for understanding the limitations o…

chemistry.chemical_classificationQuantitative Biology::BiomoleculesMaterials scienceScatteringGeneral EngineeringGeneral Physics and Astronomy02 engineering and technologyPolymerElectron010402 general chemistry021001 nanoscience & nanotechnology01 natural sciences0104 chemical scienceslaw.inventionCondensed Matter::Soft Condensed MatterchemistryChemical physicslawPolymer physicsGeneral Materials ScienceElectron microscope0210 nano-technologyScalingSelf-avoiding walkMacromoleculeACS nano
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Associations Between Online Learning, Smartphone Addiction Problems, and Psychological Symptoms in Chinese College Students After the COVID-19 Pandem…

2022

BackgroundSmartphone-based online education gained popularity during and after the COVID-19 pandemic. Although recent studies have highlighted the association between problematic smartphone use (PSU) and mental health symptoms, the potential role of online learning in this relationship remains unclear. This study aimed to analyze the relationships between higher education modes, PSU, and related psychological symptoms in university students.MethodsA total of 1,629 Chinese university students from five provinces completed a web-based questionnaire survey between March 2020 and October 2021. Demographic characteristics and learning conditions were recorded. All participants completed the Smar…

Education DistanceChinaSleep Initiation and Maintenance DisordersPublic Health Environmental and Occupational HealthCOVID-19HumansStudentsPandemicsInternet Addiction DisorderFrontiers in Public Health
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