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相关概念视频

Quantum Numbers02:43

Quantum Numbers

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It is said that the energy of an electron in an atom is quantized; that is, it can be equal only to certain specific values and can jump from one energy level to another but not transition smoothly or stay between these levels.
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Interference and Diffraction02:18

Interference and Diffraction

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Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.
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The Quantum-Mechanical Model of an Atom02:45

The Quantum-Mechanical Model of an Atom

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Shortly after de Broglie published his ideas that the electron in a hydrogen atom could be better thought of as being a circular standing wave instead of a particle moving in quantized circular orbits, Erwin Schrödinger extended de Broglie’s work by deriving what is now known as the Schrödinger equation. When Schrödinger applied his equation to hydrogen-like atoms, he was able to reproduce Bohr’s expression for the energy and, thus, the Rydberg formula governing hydrogen spectra.
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RNA Interference01:23

RNA Interference

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RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated.
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
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Interference and Decay01:16

Interference and Decay

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Forgetting is a complex cognitive phenomenon influenced by several factors, among which interference and decay are particularly prominent. These processes explain why individuals often struggle to retrieve specific information from memory, leading to lapses in recall that can be observed in everyday situations.
Interference occurs when competing memories hinder the retrieval of particular information. It can be classified into two types: proactive and retroactive interference. Proactive...
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Sound Waves: Interference00:53

Sound Waves: Interference

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Sound waves can be modeled either as longitudinal waves, wherein the molecules of the medium oscillate around an equilibrium position, or as pressure waves. When two identical waves from the same source superimpose on each other, the combination of two crests or two troughs results in amplitude reinforcement known as constructive interference. If two identical waves, that are initially in phase, become out of phase because of different path lengths, the combination of crests with troughs...
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  1. 首页
  2. 多光子干扰和状态重建的量子超表面
  1. 首页
  2. 多光子干扰和状态重建的量子超表面

相关实验视频

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
12:19

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

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多光子干扰和状态重建的量子超表面

Kai Wang1, James G Titchener1,2, Sergey S Kruk1

  • 1Nonlinear Physics Centre, Research School of Physics and Engineering, The Australian National University, Canberra, ACT 2601, Australia.

Science (New York, N.Y.)
|September 15, 2018

在PubMed 上查看摘要

概括
此摘要是机器生成的。

研究人员展示了量子应用的全介电元面,使得亚波长操纵和多光子量子状态的测量成为可能. 这一突破为成像和通信领域的超薄量子设备铺平了道路.

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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
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Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces
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Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

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相关实验视频

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
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Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

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Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces
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Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

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科学领域:

  • 量子光学
  • 纳米光子学
  • 超表面技术

背景情况:

  • 超表面提供先进的平面光学设备,但在量子应用中未得到充分利用.
  • 纳米光子结构可以在亚波长尺度上实现新的光学功能.

研究的目的:

  • 探索用于量子应用的全介电超表面的使用.
  • 展示微波长操纵和多光子量子状态的测量.
  • 为了使量子状态属性的强大重建成为可能.

主要方法:

  • 使用具有共振纳米光子结构的全介电超表面.
  • 在亚波长尺度上实现非经典的多光子干扰.
  • 使用极化不敏感探测器进行非局部光子相关测量.

主要成果:

  • 使用单个超表面同时对多个量子状态投影进行成像.
  • 多光子状态的振幅,相位,连贯性和纠的强有力的重建.
  • 一个和两个光子状态的实验重建,以更高的光子数的理论可扩展性.

结论:

  • 对于超薄的量子设备来说,全介电超表面是可行的.
  • 这些设备可以操纵和测量多光子量子状态.
  • 潜在的应用包括自由空间量子成像和通信.