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関連する概念動画

Mass Analyzers: Common Types01:19

Mass Analyzers: Common Types

The quadrupole mass analyzer consists of four cylindrical metal rods arranged in a diamond carrying a DC voltage and a radio-frequency AC voltage. The motion of ions through the quadrupole depends on the field strength, causing only ions of a certain m/z to resonate successfully and strike the detector at a given field strength. Though the transmission rate for these analyzers is high, the exact elemental composition of the sample is not determined because of low resolution; however, they are...
Mass Analyzers: Overview01:13

Mass Analyzers: Overview

The mass analyzer is a crucial component of the mass spectrometer. In the ionization chamber, the vaporized sample is bombarded with a high-energy electron beam to generate a radical cation and further fragment into neutral molecules, radicals, and cations. A series of negatively charged accelerator plates accelerate the cations into the mass analyzer. The mass analyzer separates ions according to their mass-to-charge (m/z) ratios and then directs them to the detector. The common types of mass...
Mass Spectrometers01:16

Mass Spectrometers

This lesson details the instrumentation of a mass spectrometer—a physical instrument to perform mass spectrometry on analyte molecules and record the characteristic mass spectra. This is achieved via three chief functions:
Tandem Mass Spectrometry01:21

Tandem Mass Spectrometry

Tandem mass spectrometry is a technique that uses multiple mass analyzers in series to obtain a higher selectivity and reduce chemical noise during analyte detection. Instruments with multiple analyzers separated by an interaction cell enable secondary fragmentation and selected study of the fragment ions.Secondary fragmentations occur in the interaction cell and can be induced by various factors. Fragmentation induced by collision with inert gases, such as N2, Ar, He, etc., is called...
Chemical Ionization (CI) Mass Spectrometry01:21

Chemical Ionization (CI) Mass Spectrometry

The molecular ion peak of a molecule in the mass spectrum provides vital information for molecular identification. However, conventional electron impact ionization can lead to the rapid dissociation of some molecular ions before they reach the detector. A milder ionization method is required to increase the lifetime of such ionized analyte molecules. Chemical ionization (CI) is a gas-phase protonation reaction useful for mass-analyzing analyte molecules that are easily protonated to yield the...
Mass Spectrum: Interpretation01:24

Mass Spectrum: Interpretation

An unknown compound can be established by identifying the molecular ion peak in the mass spectrum. The molecular ion peak is often weak or absent due to the predominance of fragmentation in high-energy electron beams. In such cases, a soft-energy electron beam can be used to scan the spectrum to enhance the intensity of the molecular ion peak. Additionally, chemical ionization, field ionization, and desorption ionization spectra are used to obtain a relatively intense molecular ion peak.To...

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関連する実験動画

Updated: Jun 21, 2026

Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps
11:45

Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps

Published on: August 17, 2017

拡張可能なイオントラップ量子情報処理のための完全な方法セット

Jonathan P Home1, David Hanneke, John D Jost

  • 1Time and Frequency Division, National Institute of Standards and Technology (NIST), Boulder, CO 80305, USA. jonathan.home@gmail.com

Science (New York, N.Y.)
|August 8, 2009
PubMed
まとめ
この要約は機械生成です。

研究者は,閉じ込められた原子イオンを使用して,スケーラブルな量子コンピューティングを実証しました. Qubitの操作は,イオンを長距離に運ぶ後でも,重複性が高く,大型量子プロセッサの重要なステップでした.

さらに関連する動画

Large-scale Top-down Proteomics Using Capillary Zone Electrophoresis Tandem Mass Spectrometry
10:05

Large-scale Top-down Proteomics Using Capillary Zone Electrophoresis Tandem Mass Spectrometry

Published on: October 24, 2018

Preparation of Homogeneous MALDI Samples for Quantitative Applications
08:01

Preparation of Homogeneous MALDI Samples for Quantitative Applications

Published on: October 28, 2016

関連する実験動画

Last Updated: Jun 21, 2026

Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps
11:45

Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps

Published on: August 17, 2017

Large-scale Top-down Proteomics Using Capillary Zone Electrophoresis Tandem Mass Spectrometry
10:05

Large-scale Top-down Proteomics Using Capillary Zone Electrophoresis Tandem Mass Spectrometry

Published on: October 24, 2018

Preparation of Homogeneous MALDI Samples for Quantitative Applications
08:01

Preparation of Homogeneous MALDI Samples for Quantitative Applications

Published on: October 28, 2016

科学分野:

  • 量子コンピューティング
  • 原子物理学 原子物理学とは
  • 情報科学は情報科学である.

背景:

  • 拡張可能な量子情報プロセッサには,堅牢な量子情報輸送と信頼性の高い論理操作が必要です.
  • 閉じ込められた原子イオンは,制御性と一貫性があるため,量子計算のための有望なプラットフォームです.

研究 の 目的:

  • 閉じ込められた原子イオンを使用して,スケーラブルな量子コンピューティングのための基本的な要素を実証します.
  • イオン輸送中のマルチクビットオペレーションの繰り返し率を定量化するために.

主な方法:

  • 閉じ込められた原子イオンの内部状態に保存されたクビットを使用した.
  • キュービット貯蔵,読み出し,ゲートのために,9Be+イオンの超精細状態を採用した.
  • 再冷却のための24Mg+イオンの同時トラッピングを実施しました.

主要な成果:

  • 拡張可能な量子コンピューティングのための不可欠な要素の組み合わせを展示しました.
  • マルチクビット操作の定量化された高重複性.
  • 顕微鏡量子ビット輸送にもかかわらず,性能低下は観察されなかった.

結論:

  • 実証された技術は,大規模で信頼性の高い量子情報プロセッサの構築に不可欠です.
  • 頑丈な量子ビットの貯蔵と輸送は,トラップされたイオンで,実用的な量子計算の道を開く.