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Related Concept Videos

Inductively Coupled Plasma-Mass Spectrometry (ICP-MS): Interferences01:20

Inductively Coupled Plasma-Mass Spectrometry (ICP-MS): Interferences

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Inductively coupled plasma–mass spectrometry (ICP–MS) is a highly selective and sensitive technique for accurate elemental analysis. Though the analysis of ICP–MS mass spectra is comparatively straightforward, it is affected by spectroscopic and non-spectroscopic interferences. Spectroscopic interferences arise when the plasma contains ionic species with an m/z value the same as the analyte ion. Spectroscopic interference can be categorized as isobaric, polyatomic ions, and...
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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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Interference leads to systematic error in atomic absorption (AA) measurements by enhancing or diminishing the analytical signal or the background. These interferences can be grouped into three main categories: spectral interference, chemical interference, and physical interference.
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Mass Analyzers: Common Types01:19

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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...
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Atomic Emission Spectroscopy: Interference01:30

Atomic Emission Spectroscopy: Interference

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In atomic emission spectroscopy (AES), high-temperature atomizers excite a broad range of elements and molecules that generate complex emissions from sources such as oxides, hydroxides, and flame combustion products in the flame or plasma. Several strategies can be employed to minimize spectral interferences caused by overlapping emission lines or bands. These include increasing instrument resolution, choosing alternative emission lines, optimally placing the detector in low-background regions,...
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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...
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Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
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Multi-Particle Interference in an Electronic Mach-Zehnder Interferometer.

Janne Kotilahti1, Pablo Burset1,2, Michael Moskalets3

  • 1Department of Applied Physics, Aalto University, 00076 Aalto, Finland.

Entropy (Basel, Switzerland)
|July 2, 2021
PubMed
Summary
This summary is machine-generated.

Researchers explored multi-particle quantum effects in an electronic Mach-Zehnder interferometer using voltage pulses. They found that particle interactions create unique interference patterns, influencing current and visibility in mesoscopic circuits.

Keywords:
Floquet scattering theoryMach–Zehnder interferometerelectron quantum opticslevitonssingle-electron sourcestime-dependent currents

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Area of Science:

  • Quantum physics
  • Mesoscopic electronics

Background:

  • Dynamic single-electron sources enable manipulation of quantum properties.
  • Understanding multi-particle interactions is crucial for quantum devices.

Purpose of the Study:

  • Investigate multi-particle effects in an electronic Mach-Zehnder interferometer.
  • Analyze interference current and visibility under pulsed voltage.

Main Methods:

  • Utilized a Floquet scattering formalism.
  • Decomposed multi-particle states into single-particle correlations.
  • Evaluated interference current and visibility.

Main Results:

  • Individual particles contribute independently to interference current.
  • Visibility shows a Fraunhofer-like diffraction pattern due to multi-particle interference.
  • Sequences of pulses create grid-like diffraction patterns.

Conclusions:

  • Multi-particle interference significantly impacts interferometer output.
  • Findings provide a framework for designing quantum electronic devices.
  • Experimental verification of these effects is anticipated.