Ballistic conduction and Superconductivity

In summary, ballistic conduction is when a conductor is shorter than the mean free path of electrons. It is different from superconductivity because it does not exhibit the Meissner effect and will stop conducting when the driving force is turned off. In contrast, superconductors continue to conduct even after the driving supply is disconnected. However, even in the ballistic regime, there is still some residual resistance, and the Meissner effect does not apply. This topic would be better suited for the Solid State forum.
  • #1
NewtonApple
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Ballistic conduction occurs when the length of the conductor is smaller than the mean free path of the electron.

Ballistic conduction differs from superconductivity due to the absence of the Meissner effect in the material. A ballistic conductor would stop conducting if the driving force is turned off, whereas in a superconductor current would continue to flow after the driving supply is disconnected.

Can anyone elaborate it?
 
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  • #2
I think it's a wrong forum. I'm re posting it at another forum.
 
  • #3
Maybe the solid state forum would be better suited.
But anyhow. Even in the balistic regime, you have residual resistance, so that some current in a current loop would decay.
The Meissner effect means something different. If you cool a conductor, it will expell the magnetic field when it becomes superconducting while if it doesn't become superconducting, but only looses resistivity, it won't expell the magnetic field.
 
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  • #4
thx! I'm re-posting it at Solid State forum.
 
  • #5
Better use the "report" button and ask staff to move it!
 

1. What is ballistic conduction?

Ballistic conduction is a type of electrical conduction that occurs at very low temperatures and in very small structures. It involves the movement of electrons through a material without any scattering or collisions with impurities or defects. This results in extremely high electrical conductivity.

2. How does ballistic conduction differ from other types of conduction?

Unlike traditional conductors, which rely on the movement of electrons through a material via collisions with impurities or defects, ballistic conduction occurs without any scattering. This is possible due to the small size of the material and the low temperatures at which it occurs.

3. What is superconductivity?

Superconductivity is a phenomenon in which certain materials exhibit zero electrical resistance when cooled below a critical temperature. This allows for the flow of electrical current without any energy loss, making it highly desirable for various applications.

4. How does superconductivity relate to ballistic conduction?

Superconductivity is closely related to ballistic conduction, as both involve the movement of electrons through a material without any scattering. In fact, some superconducting materials exhibit ballistic conduction at very low temperatures, further enhancing their conductive properties.

5. What are the potential applications of ballistic conduction and superconductivity?

There are many potential applications for ballistic conduction and superconductivity, including in electronics, energy transmission and storage, and medical imaging. These technologies could lead to more efficient and advanced devices, as well as improved medical treatments. However, more research is needed to fully understand and harness the potential of these phenomena.

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