Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

The Quantum-Mechanical Model of an Atom02:45

The Quantum-Mechanical Model of an Atom

56.1K
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.
56.1K
Subatomic Particles03:37

Subatomic Particles

110.5K
Dalton was only partially correct about the particles that make up matter. All matter is composed of atoms, and atoms are composed of three smaller subatomic particles: protons, neutrons, and electrons. These three particles account for the mass and the charge of an atom.
110.5K
The Uncertainty Principle04:08

The Uncertainty Principle

30.9K
Werner Heisenberg considered the limits of how accurately one can measure properties of an electron or other microscopic particles. He determined that there is a fundamental limit to how accurately one can measure both a particle’s position and its momentum simultaneously. The more accurate the measurement of the momentum of a particle is known, the less accurate the position at that time is known and vice versa. This is what is now called the Heisenberg uncertainty principle. He...
30.9K
The de Broglie Wavelength02:32

The de Broglie Wavelength

32.6K
In the macroscopic world, objects that are large enough to be seen by the naked eye follow the rules of classical physics. A billiard ball moving on a table will behave like a particle; it will continue traveling in a straight line unless it collides with another ball, or it is acted on by some other force, such as friction. The ball has a well-defined position and velocity or well-defined momentum, p = mv, which is defined by mass m and velocity v at any given moment. This is the typical...
32.6K
Electron Behavior01:09

Electron Behavior

11.1K
Electrons are negatively charged subatomic particles attracted to and orbit around the positively-charged nucleus of an atom. They reside in spaces associated with energy levels called shells and are further organized into subshells and orbitals within each shell.
Electrons Orbit the Nucleus
Electrons are found in specific locations outside of the nucleus. The shell in which an electron resides indicates the general energy level of the electron: those closer to the nucleus have less energy,...
11.1K
Electron Behavior00:54

Electron Behavior

106.8K
Overview
Electrons are negatively charged subatomic particles that are attracted to an orbit around the positively-charged nucleus of an atom. They reside in locations that are associated with energy levels called shells and are further organized into sub-shells and orbitals within each shell.
Electrons Orbit the Nucleus
Electrons are found in specific locations outside of the nucleus. The shell in which an electron resides indicates the general energy level of the electron: those closer to the...
106.8K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Soliton dynamics in polyacetylene.

Proceedings of the National Academy of Sciences of the United States of America·1980
Same author

Macroscopic quantum phenomena from pairing in superconductors.

Science (New York, N.Y.)·1973
Same journal

The Photochemistry of Propane at High Photon Energies (8.4-21.2 eV).

Journal of research of the National Bureau of Standards. Section A, Physics and chemistry·2021
Same journal

Isomerization Processes in Ions of the Empirical Formula <math> </math>.

Journal of research of the National Bureau of Standards. Section A, Physics and chemistry·2021
Same journal

Temperature Dependence of Photocurrents Produced by X and Gamma Rays in Silicon Radiation Detectors.

Journal of research of the National Bureau of Standards. Section A, Physics and chemistry·2021
Same journal

Stable Radical-Anions Derived from Glyoxal <i>Bis</i>(phenylhydrazones).

Journal of research of the National Bureau of Standards. Section A, Physics and chemistry·2021
Same journal

High-Speed (Subsecond) Measurement of Heat Capacity, Electrical Resistivity, and Thermal Radiation Properties of Niobium in the Range 1500 to 2700 K.

Journal of research of the National Bureau of Standards. Section A, Physics and chemistry·2021
Same journal

A New Determination of the Atomic Weight of Zinc.

Journal of research of the National Bureau of Standards. Section A, Physics and chemistry·2021
See all related articles

Related Experiment Video

Updated: Dec 18, 2025

Setting Limits on Supersymmetry Using Simplified Models
07:46

Setting Limits on Supersymmetry Using Simplified Models

Published on: November 15, 2013

8.9K

What is a Quasi-Particle?

J R Schrieffer1

  • 1Department of Physics, University of Pennsylvania, Philadelphia, Pennsylvania.

Journal of Research of the National Bureau of Standards. Section A, Physics and Chemistry
|June 12, 2020
PubMed
Summary
This summary is machine-generated.

This study explores quasi-particle excitations in many-body systems, detailing their physical origins like mass enhancement and mathematical descriptions. It reviews Landau

Keywords:
Density of statesGreen’s functionmass enhancementquasi-particlesuperconductors

More Related Videos

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
10:40

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

Published on: June 28, 2016

7.8K
Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

9.5K

Related Experiment Videos

Last Updated: Dec 18, 2025

Setting Limits on Supersymmetry Using Simplified Models
07:46

Setting Limits on Supersymmetry Using Simplified Models

Published on: November 15, 2013

8.9K
High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
10:40

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

Published on: June 28, 2016

7.8K
Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

9.5K

Area of Science:

  • Condensed Matter Physics
  • Quantum Mechanics
  • Many-Body Theory

Background:

  • Interacting many-body systems exhibit complex emergent phenomena.
  • Quasi-particles are emergent phenomena that simplify the description of such systems.
  • Understanding quasi-particle properties is crucial for condensed matter physics.

Purpose of the Study:

  • To provide a comprehensive discussion of quasi-particle excitations.
  • To explore both physical and mathematical aspects of quasi-particles.
  • To review Landau's Fermi liquid theory and its relevance.

Main Methods:

  • Physical explanations of mass enhancement and wave function renormalization.
  • Mathematical formulation of quasi-particle interactions.
  • Review of Landau's quasi-particle kinetic equation.

Main Results:

  • Detailed presentation of the physical origins of quasi-particle properties.
  • Mathematical framework for understanding quasi-particle behavior.
  • Review of Landau's Fermi liquid theory provides a robust theoretical basis.

Conclusions:

  • Quasi-particle approximations offer a powerful tool for understanding complex systems.
  • The study clarifies the physical basis and mathematical description of quasi-particles.
  • The domain of validity for quasi-particle approximations is discussed.