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相关概念视频

Electron Microscope Tomography and Single-particle Reconstruction01:07

Electron Microscope Tomography and Single-particle Reconstruction

Transmission electron microscopy (TEM) can be used to determine the 3D structure of biological samples with the help of techniques such as electron microscope tomography and single-particle reconstruction. While single-particle reconstruction can examine macromolecules and macromolecular complexes in vitro conditions only, tomography permits the study of cell components or small cells in vivo.
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...
Multi-input and Multi-variable systems01:22

Multi-input and Multi-variable systems

Cruise control systems in cars are designed as multi-input systems to maintain a driver's desired speed while compensating for external disturbances such as changes in terrain. The block diagram for a cruise control system typically includes two main inputs: the desired speed set by the driver and any external disturbances, such as the incline of the road. By adjusting the engine throttle, the system maintains the vehicle's speed as close to the desired value as possible.
In the absence of...
Model Approaches for Pharmacokinetic Data: Distributed Parameter Models01:06

Model Approaches for Pharmacokinetic Data: Distributed Parameter Models

Pharmacokinetic models are mathematical constructs that represent and predict the time course of drug concentrations in the body, providing meaningful pharmacokinetic parameters. These models are categorized into compartment, physiological, and distributed parameter models.
The distributed parameter models are specifically designed to account for variations and differences in some drug classes. This model is particularly useful for assessing regional concentrations of anticancer or...

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Bound states in the continuum in plasmonic structures.

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Varifocal Alvarez metalens array for adaptive light-field imaging.

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Full-color 3D visualization with Janus metafiber.

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Dual-function acoustic-to-optical transducers for underwater encrypted communication and subwavelength distance measurement.

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相关实验视频

Updated: Jul 3, 2026

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces
09:33

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

Published on: June 7, 2019

6.6K

基于元表面的多用户全光学量子网络.

Shengshuai Liu1,2,3, Lin Li1,3, Yujie Wang4

  • 1State Key Laboratory of Precision Spectroscopy, Joint Institute of Advanced Science and Technology, School of Physics and Electronic Science, East China Normal University. Shanghai 200062, China.

Science advances
|October 10, 2025
PubMed
概括
此摘要是机器生成的。

研究人员使用紧的metalens阵列创建了最大的连续变量量子状态共享网络. 这一突破推动了对多个用户的安全,大规模量子网络的开发.

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Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms
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Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit
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相关实验视频

Last Updated: Jul 3, 2026

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces
09:33

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

Published on: June 7, 2019

6.6K
Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms
08:48

Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms

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Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit
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Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit

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科学领域:

  • 量子信息科学 量子信息科学
  • 光学元表面是指光学元表面.
  • 量子网络是一个量子网络.

背景情况:

  • 建立大型多用户量子网络对于安全的信息传输至关重要.
  • 当前的挑战包括需要大规模和紧的爱因斯坦-波多尔斯基-罗森 (EPR) 纠状态.
  • 连续变量 (CV) 量子网络为量子通信提供了一个有前途的途径.

研究的目的:

  • 通过实验生成一个紧的,大规模的连续变量 (CV) 爱因斯坦-波多尔斯基-罗森 (EPR) 纠阵列.
  • 在CV制度中建立最大的全光学量子状态共享 (AOQSS) 网络.
  • 展示一种新的基于地表的方法来产生CV EPR纠.

主要方法:

  • 使用一个metalens阵列来实验生成一个5x5CV EPR纠阵列.
  • 基于生成的紧型EPR纠阵列构建了一个五个用户的AOQSS网络.
  • 通过测量其对经典极限的忠实性来评估网络的性能.

主要成果:

  • 使用metalens阵列成功生成了一个紧的5x5CV EPR纠阵列.
  • 建立了一个五个用户的AOQSS网络,其保真度超过了经典的限制.
  • 证明了迄今为止CV制度中最大的AOQSS网络.

结论:

  • 基于Metasurface的方法为生成大规模和紧的CV EPR纠状态提供了一个有希望的平台.
  • 这项工作为建造大型全光多用户量子网络铺平了道路.
  • 使用元表面的紧型CV EPR纠生成为先进的量子网络开发开辟了新的可能性.