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 de Broglie Wavelength02:32

The de Broglie Wavelength

31.8K
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...
31.8K
Atomic Nuclei: Nuclear Relaxation Processes01:23

Atomic Nuclei: Nuclear Relaxation Processes

913
In the absence of an external magnetic field, nuclear spin states are degenerate and randomly oriented. When a magnetic field is applied, the spins begin to precess and orient themselves along (lower energy) or against (higher energy) the direction of the field. At equilibrium, a slight excess population of spins exists in the lower energy state. Because the direction of the magnetic field is fixed as the z-axis,  the precessing magnetic moments are randomly oriented around the z-axis.
913
The Hall Effect01:30

The Hall Effect

3.2K
Edwin H. Hall, in the year 1879, devised an experiment that could be used to identify the polarity of the predominant charge carriers in a conducting material. From a historical perspective, this experiment was the first to demonstrate that the charge carriers in most metals are negative.
3.2K
Atomic Nuclei: Types of Nuclear Relaxation01:28

Atomic Nuclei: Types of Nuclear Relaxation

624
Nuclear relaxation restores the equilibrium population imbalance and can occur via spin–lattice or spin–spin mechanisms, which are first-order exponential decay processes.
In spin–lattice or longitudinal relaxation, the excited spins exchange energy with the surrounding lattice as they return to the lower energy level. Among several mechanisms that contribute to spin–lattice relaxation, magnetic dipolar interactions are significant. Here, the excited nucleus transfers...
624
Standing Waves in a Cavity01:28

Standing Waves in a Cavity

1.2K
A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:
1.2K
π Electron Effects on Chemical Shift: Overview01:27

π Electron Effects on Chemical Shift: Overview

1.4K
An applied magnetic field causes loosely bound π-electrons in organic molecules to circulate, producing a local or induced diamagnetic field over a large spatial volume. As the molecules tumble in solution, the field generated by π-electrons in spherical substituents results in a zero net field. However, the net field generated by π-electrons in non-spherical substituents is not zero. The effect of this induced field depends on the orientation of the molecule with respect to B0,...
1.4K

You might also read

Related Articles

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

Sort by
Same author

Breakdown of the Wiedemann-Franz Law in an Interacting Quantum Hall Metamaterial.

Physical review letters·2026
Same author

Spin-Based Quantum Energy Devices: From Quantum Thermal Machines to Quantum Batteries.

Entropy (Basel, Switzerland)·2026
Same author

Unveiling the Current-Phase Relationship of InSb Nanoflag Josephson Junctions Using a NanoSQUID Magnetometer.

Nano letters·2025
Same author

Time-resolved sensing of electromagnetic fields with single-electron interferometry.

Nature nanotechnology·2025
Same author

Controlling Energy Storage Crossing Quantum Phase Transitions in an Integrable Spin Quantum Battery.

Physical review letters·2024
Same author

Electron wave and quantum optics in graphene.

Journal of physics. Condensed matter : an Institute of Physics journal·2024

Related Experiment Video

Updated: Nov 19, 2025

Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing
15:58

Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing

Published on: December 3, 2013

6.0K

Electronic Wave-Packets in Integer Quantum Hall Edge Channels: Relaxation and Dissipative Effects.

Giacomo Rebora1,2, Dario Ferraro1,2, Ramiro H Rodriguez3

  • 1Dipartimento di Fisica, Università di Genova, Via Dodecaneso 33, 16146 Genova, Italy.

Entropy (Basel, Switzerland)
|January 27, 2021
PubMed
Summary

We studied electronic wave-packets in quantum Hall edge channels. A linear energy loss rate best explains experimental data for quasi-particle peaks at short distances.

Keywords:
dissipationelectron quantum opticsinteraction effectsrelaxation

More Related Videos

Gradient Echo Quantum Memory in Warm Atomic Vapor
10:00

Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 11, 2013

13.0K
Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

14.8K

Related Experiment Videos

Last Updated: Nov 19, 2025

Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing
15:58

Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing

Published on: December 3, 2013

6.0K
Gradient Echo Quantum Memory in Warm Atomic Vapor
10:00

Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 11, 2013

13.0K
Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

14.8K

Area of Science:

  • Condensed matter physics
  • Quantum Hall effect
  • Mesoscopic physics

Background:

  • Integer quantum Hall effect provides a unique platform for studying edge states.
  • Ballistic transport of electronic wave-packets is crucial for quantum devices.
  • Understanding scattering and dissipation mechanisms is key to controlling quantum transport.

Purpose of the Study:

  • To theoretically investigate the peak height evolution of energy-resolved electronic wave-packets.
  • To determine the dominant scattering and dissipation mechanisms in quantum Hall edge channels.
  • To compare theoretical predictions with experimental data for validation.

Main Methods:

  • Theoretical modeling of electronic wave-packet propagation.
  • Analysis of elastic scattering amplitudes for fermionic excitations.
  • Incorporation of capacitive coupling and phenomenological energy dissipation (linear and quadratic).
  • Comparison with experimental results.

Main Results:

  • The non-dissipative case was ruled out.
  • A quadratic energy dependence of dissipation was excluded.
  • A linear energy loss rate emerged as the best fit for experimental data.
  • The findings are valid for short propagation lengths.

Conclusions:

  • Quasi-particle peak behavior is best described by a linear energy loss rate.
  • This indicates energy dissipation towards additional degrees of freedom.
  • The study provides insights into scattering and dissipation in quantum Hall systems.
  • Experimental validation supports the proposed theoretical framework.