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

Superconductor01:24

Superconductor

2.1K
A substance that reaches superconductivity, a state in which magnetic fields cannot penetrate, and there is no electrical resistance, is referred to as a superconductor. In 1911, Heike Kamerlingh Onnes of Leiden University, a Dutch physicist, observed a relation between the temperature and the resistance of the element mercury. The mercury sample was then cooled in liquid helium to study the linear dependence of resistance on temperature. It was observed that, as the temperature decreased, the...
2.1K
Types Of Superconductors01:28

Types Of Superconductors

1.9K
A superconductor is a substance that offers zero resistance to the electric current when it drops below a critical temperature. Zero resistance is not the only interesting phenomenon as materials reach their transition temperatures. A second effect is the exclusion of magnetic fields. This is known as the Meissner effect. A light, permanent magnet placed over a superconducting sample will levitate in a stable position above the superconductor. High-speed trains that levitate on strong...
1.9K
Joule-Thomson Effect01:21

Joule-Thomson Effect

11.6K
The Joule-Thomson effect, also known as the Joule-Kelvin effect, describes the temperature change of a fluid when it is forced through a valve or porous plug while keeping it in a thermally insulated environment. This experiment is called a throttling process. This is an important effect widely used in refrigeration and the liquefaction of gases.
This experiment forces high-pressure gas through a throttle valve or a porous plug to a lower-pressure region. The gas expands as it passes through to...
11.6K
Theory of Metallic Conduction01:17

Theory of Metallic Conduction

2.0K
The conduction of free electrons inside a conductor is best described by quantum mechanics. However, a classical model makes predictions close to the results of quantum mechanics. It is called the theory of metallic conduction.
In this theory, Newton's second law of motion is used to determine the acceleration of an electron in the presence of an applied electric field. Then, its velocity is expressed via this acceleration.
An electron moves through the crystal, containing positive ions,...
2.0K
The Joule and Joule–Thomson Experiments01:23

The Joule and Joule–Thomson Experiments

177
Consider an adiabatic system composed of two chambers, A and B, designed such that no heat flows into or out of the system. Initially, chamber A is filled with a gas at a fixed temperature T1, pressure p1, and volume V1, while chamber B is evacuated. The gas is then gradually forced through a rigid, porous barrier to chamber B, ultimately reaching temperature T2, pressure p2, and volume V2. A piston on the right side maintains a constant pressure (p2), which is lower than p1. The significant...
177
Magnetic Force Between Two Parallel Currents01:13

Magnetic Force Between Two Parallel Currents

5.1K
Two long, straight, and parallel current-carrying conductors exert a force of equal magnitude on one another. The direction of the force depends on the current direction in the conductors.
The force exerted by the magnetic field due to the first conductor over a finite length of the second conductor is given as the product of the current in the second conductor and  the vector product of the length vector along the current element and the field due to the first conductor. According to the...
5.1K

You might also read

Related Articles

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

Sort by
Same author

Multiple Scattering Expansion for Dielectric Media: Casimir Effect.

Physical review letters·2023
Same author

Interplay of curvature and temperature in the Casimir-Polder interaction.

Journal of physics. Condensed matter : an Institute of Physics journal·2015
Same author

Apparatus for measuring the thermal Casimir force at large distances.

Physical review letters·2014
Same author

Hide it to see it better: a robust setup to probe the thermal Casimir effect.

Physical review letters·2014
Same author

Exact results for classical Casimir interactions: Dirichlet and Drude model in the sphere-sphere and sphere-plane geometry.

Physical review letters·2012
Same author

Comment on "Low-frequency character of the Casimir force between metallic films".

Physical review. E, Statistical, nonlinear, and soft matter physics·2006

Related Experiment Video

Updated: Apr 12, 2026

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

10.5K

A robust superconducting setup to probe the thermal Casimir effect.

Giuseppe Bimonte1

  • 1Dipartimento di Fisica Università di Napoli Federico II Complesso Universitario MSA Via Cintia I-80126 Napoli Italy NFN, Sezione di Napoli, Napoli, Italy.

Journal of Physics. Condensed Matter : an Institute of Physics Journal
|May 13, 2015
PubMed
Summary

This study introduces a superconducting Casimir apparatus to differentiate between thermal force models. The experiment uses a niobium sphere and gold plate to measure Casimir force modulations, distinguishing Drude and plasma models.

More Related Videos

High-resolution Thermal Micro-imaging Using Europium Chelate Luminescent Coatings
09:01

High-resolution Thermal Micro-imaging Using Europium Chelate Luminescent Coatings

Published on: April 16, 2017

8.3K
Fabrication and Characterization of Superconducting Resonators
10:26

Fabrication and Characterization of Superconducting Resonators

Published on: May 21, 2016

12.1K

Related Experiment Videos

Last Updated: Apr 12, 2026

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

10.5K
High-resolution Thermal Micro-imaging Using Europium Chelate Luminescent Coatings
09:01

High-resolution Thermal Micro-imaging Using Europium Chelate Luminescent Coatings

Published on: April 16, 2017

8.3K
Fabrication and Characterization of Superconducting Resonators
10:26

Fabrication and Characterization of Superconducting Resonators

Published on: May 21, 2016

12.1K

Area of Science:

  • Condensed matter physics
  • Quantum field theory

Background:

  • The Casimir effect describes a quantum mechanical force arising from vacuum fluctuations.
  • Distinguishing between thermal force models (Drude vs. plasma) is crucial for accurate Casimir force predictions.
  • Previous theoretical proposals explored magnetic surfaces for Casimir force manipulation.

Purpose of the Study:

  • To propose and analyze a superconducting Casimir apparatus for discriminating between thermal force models.
  • To investigate the potential of a niobium-gold system for unambiguous model selection.

Main Methods:

  • Designing a Casimir apparatus with a superconducting niobium sphere and a gold plate containing a superconducting niobium strip.
  • Implementing a differential measurement of the Casimir force at two points on the gold plate.
  • Theoretically computing Casimir force modulations using both Drude and plasma models for thermal effects.

Main Results:

  • The superconducting system exhibits significantly different Casimir force modulations depending on the thermal force model used (Drude or plasma).
  • The proposed experimental setup allows for a clear distinction between the predictions of the Drude and plasma models.

Conclusions:

  • The superconducting Casimir apparatus provides a viable experimental pathway to unambiguously discriminate between the Drude and plasma models.
  • This work advances the understanding and experimental verification of thermal effects in Casimir force measurements.