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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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Imaging Biological Samples with Optical Microscopy01:18

Imaging Biological Samples with Optical Microscopy

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Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
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Ultraviolet and Visible (UV–Vis) Spectroscopy: Overview01:02

Ultraviolet and Visible (UV–Vis) Spectroscopy: Overview

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Ultraviolet–visible (UV–visible or UV–Vis) spectroscopy is an analytical technique that investigates the interaction between matter and UV–Vis light within the electromagnetic spectrum. This method is widely used for its versatility, simplicity, and relatively quick data acquisition, making it valuable for both qualitative and quantitative analysis. When UV–Vis radiation passes through a material,  molecules absorb light depending on the energy required for...
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Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
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Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

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量子光学について. ユニバーサル・リニア光学

Jacques Carolan1, Christopher Harrold1, Chris Sparrow2

  • 1Centre for Quantum Photonics, H. H. Wills Physics Laboratory, and Department of Electrical and Electronic Engineering, University of Bristol, Merchant Venturers Building, Woodland Road, Bristol BS8 1UB, UK.

Science (New York, N.Y.)
|July 11, 2015
PubMed
まとめ
この要約は機械生成です。

研究者らは,すべての線形光学プロトコルを実行できる単一の,再プログラム可能な光子チップを開発しました. この普遍的なシステムは,量子論理,ボゾンサンプリング,複雑なハダマードの高速実装を高精度で可能にします.

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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
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Multimodal Volumetric Retinal Imaging by Oblique Scanning Laser Ophthalmoscopy oSLO and Optical Coherence Tomography OCT
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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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Multimodal Volumetric Retinal Imaging by Oblique Scanning Laser Ophthalmoscopy oSLO and Optical Coherence Tomography OCT
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Multimodal Volumetric Retinal Imaging by Oblique Scanning Laser Ophthalmoscopy oSLO and Optical Coherence Tomography OCT

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科学分野:

  • 量子光学とは,量子光学である.
  • フォトニック・インテグレーテッド・サーキット

背景:

  • 線形光学は,量子力学試験や量子技術において極めて重要です.
  • 多様な光学プロトコルを実装するには,しばしば,再プログラムできない特殊なハードウェアが必要です.

研究 の 目的:

  • すべての線形光学プロトコルのための単一の,普遍的な,再プログラム可能な光子チップを実証する.
  • マルチフォトン実験の任意の制御と測定を可能にするために.

主な方法:

  • 単一のチップで15のマッハ-ゼンダー干渉計と30の熱光学相変化器を使用した6モードの汎用光学回路を統合しました.
  • 任意のフェーズシッター制御,マルチフォトンの入力,単一フォトンの検出のための電気と光学インターフェースを開発しました.
  • 量子論理ゲート,ボゾンサンプリング,複雑なハダマード変換を実行するためにシステムをプログラムしました.

主要な成果:

  • 報じられた量子論理と絡み合うゲートを成功裏に実装しました.
  • ボゾンサンプル採取と検証試験を実施しました.
  • 高平均精度 (0.999 ± 0.001) の6次元複合ハダマードと100ハールランダムユニタリーを実行しました.

結論:

  • 展示された再プログラム可能な光子チップは,線形光学プロトコルのための普遍的なプラットフォームとして機能します.
  • このシステムは,複雑な量子実験の迅速な実施を容易にし,基礎科学と量子技術の進歩を促します.