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 Uncertainty Principle04:08

The Uncertainty Principle

23.3K
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...
23.3K
The de Broglie Wavelength02:32

The de Broglie Wavelength

25.9K
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...
25.9K
Energy Associated With a Charge Distribution01:21

Energy Associated With a Charge Distribution

1.5K
The work done to bring a charge through a distance r is given by the potential difference between the initial and the final position. To assemble a collection of point charges, the total work done can be expressed in terms of the product of each pair of charges divided by their separation distance, defined with respect to a suitable origin. Solving this expression gives the energy stored in a point charge distribution.
1.5K
The Bohr Model02:18

The Bohr Model

53.3K
Following the work of Ernest Rutherford and his colleagues in the early twentieth century, the picture of atoms consisting of tiny dense nuclei surrounded by lighter and even tinier electrons continually moving about the nucleus was well established. This picture was called the planetary model since it pictured the atom as a miniature “solar system” with the electrons orbiting the nucleus like planets orbiting the sun. The simplest atom is hydrogen, consisting of a single proton as...
53.3K
Photoelectric Effect02:26

Photoelectric Effect

29.7K
When light of a particular wavelength strikes a metal surface, electrons are emitted. This is called the photoelectric effect. The minimum frequency of light that can cause such emission of electrons is called the threshold frequency, which is specific to the metal. Light with a frequency lower than the threshold frequency, even if it is of high intensity, cannot initiate the emission of electrons. However, when the frequency is higher than the threshold value, the number of electrons ejected...
29.7K
Fermi Level Dynamics01:12

Fermi Level Dynamics

245
The vacuum level denotes the energy threshold required for an electron to escape from a material surface. It is usually positioned above the conduction band of a semiconductor and acts as a benchmark for comparing electron energies within various materials.
Electron affinity in semiconductors refers to the energy gap between the minimum of its conduction band and the vacuum level and it is a critical parameter in determining how easily a semiconductor can accept additional electrons.
The work...
245

You might also read

Related Articles

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

Sort by
Same author

Machine learning assisted predicting and engineering specific surface area and total pore volume of biochar.

Bioresource technology·2022
Same author

Abnormal resting-state functional connectivity of the insula in medication-free patients with obsessive-compulsive disorder.

BMC psychiatry·2022
Same author

The protective mechanism of a novel polysaccharide from Lactobacillus-fermented Nostoc commune Vauch. on attenuating cadmium-induced kidney injury in mice.

International journal of biological macromolecules·2022
Same author

Effects of an Intermittent Fasting 5:2 Plus Program on Body Weight in Chinese Adults with Overweight or Obesity: A Pilot Study.

Nutrients·2022
Same author

Accessibility of essential anticancer medicines for children in the Sichuan Province of China.

Frontiers in public health·2022
Same author

The delivery of nanoparticles improves the pharmacokinetic properties of celecoxib to open a therapeutic window for oral administration of insoluble drugs.

Biomedical chromatography : BMC·2022
Same journal

A 44-min periodic radio transient in a supernova remnant.

Science bulletin·2026
Same journal

Lipoprotein(a): a therapeutic target in waiting? Evidently, evidence-based.

Science bulletin·2026
Same journal

Theoretical prediction of semiconductors by data driven light-element substitution in topological materials.

Science bulletin·2026
Same journal

High-performance quantum interconnect between bosonic modules beyond transmission loss constraints.

Science bulletin·2026
Same journal

Polymer-regulated crystallization enables scalable, high-performance heterostructured perovskite luminescent optoelectronic fibers.

Science bulletin·2026
Same journal

Global fits and the search for new physics: past, present and future.

Science bulletin·2026
See all related articles

Related Experiment Video

Updated: Jun 29, 2025

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

9.6K

Emergent energy dissipation in quantum limit.

Hailong Li1, Hua Jiang2, Qing-Feng Sun3

  • 1International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China.

Science Bulletin
|March 28, 2024
PubMed
Summary
This summary is machine-generated.

Energy dissipation in quantum systems can occur without backscattering, even in topological systems like graphene. This Joule heating arises from non-equilibrium carrier energy distribution, not just resistance.

Keywords:
Chern insulatorsEnergy dissipationNon-equilibrium energy distributionQuantum limitTopological systems

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

12.8K
Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
11:21

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Published on: March 30, 2017

7.5K

Related Experiment Videos

Last Updated: Jun 29, 2025

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

9.6K
Gradient Echo Quantum Memory in Warm Atomic Vapor
10:00

Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 11, 2013

12.8K
Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
11:21

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Published on: March 30, 2017

7.5K

Area of Science:

  • Quantum physics
  • Condensed matter physics
  • Topological materials

Background:

  • Energy dissipation is critical in quantum systems.
  • Its emergence without backscattering in topological systems is an open question.
  • Understanding dissipation is key for quantum technologies.

Purpose of the Study:

  • To propose a microscopic picture of energy dissipation in graphene's quantum Hall (QH) plateau regime.
  • To investigate dissipation mechanisms beyond traditional resistance.
  • To explore implications for topological circuits.

Main Methods:

  • Theoretical modeling of energy dissipation in graphene.
  • Analysis of carrier energy distribution under quantum Hall conditions.
  • Microscopic picture illustrating Joule heat formation.

Main Results:

  • Energy dissipation emerges as Joule heat in the QH plateau regime of graphene.
  • Non-equilibrium carrier energy distribution is the primary driver of dissipation, not resistance.
  • This occurs despite quantized Hall, longitudinal, and two-probe resistances (quantum limit).

Conclusions:

  • Energy dissipation can occur in topological systems without backscattering.
  • Non-equilibrium carrier dynamics are crucial for understanding dissipation.
  • Experimental verification via local temperature measurements is proposed.
  • Reconsideration of ignored dissipation in topological circuits is suggested.