# Questions tagged [debye-length]

The Debye length is the distance over which significant charge separation can occur in a conductive material or plasma due to a variety of effects.

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### Is the Debye Length Meaningful for a Pure Ion Plasma

I'm current working in a research area that is adapting techniques from plasma simulation to simulation spacecraft electric propulsion systems that are not neutralized. Essentially they are pure ion ...
1 vote
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### Why is the plasma density within a Debye sphere at odds with overall plasma density?

A strongly coupled plasma is characterized by the following attributes: higher number density lower particle speeds (lower temperature) smaller Debye length continuous electrostatic influence ...
1 vote
113 views

### Anisotropic screened Coulomb interaction for particles in a plasma

Background (isotropic screening): Consider a quasi neutral plasma. An ion/electron in a dense plasma attracts opposite-charged particles and repels those with the same charge, thereby creating a "...
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1 vote
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### Does Debye shielding occur in non-neutral plasma?

If you have a non-neutral plasma, lets say positive ions, and immerse a negatively charged point source, would that source's field be screened out at large distances? How about if the source was ...
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### Will there be an electric field near the wall inside a charged conducting sphere full of plasma?

Looking for some intuition on this question: We all learn from Gauss's law that inside a charged conducting spherical shell there should be no electric field. What about if the sphere contains a ...
1 vote
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### Poisson equation with vector as an argument of charge density [closed]

I want to solve the Poisson equation with the following charge density: $$\rho(\vec{r})=q\delta(\vec{r}-\vec{r_i})-q\frac{1}{4\pi r^2_D} \frac{e^{-|\vec{r}-\vec{r_i}|/r_D}}{|\vec{r}-\vec{r_i}|}$$ So ...
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### Is there any good way to demonstrate Debye plasma shielding in a classroom?

In this age of amazing information exchange, despite loads of glorious YouTube DIY science channels, I haven't seen anyone demonstrate Debye plasma shielding. I can imagine it might be hard to come up ...
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### Plasma physics when plasma conditions don't apply

I've started to look into the field of plasma physics and I saw that not any gas of charges can be considered a plasma. There are 3 main conditions for something to be considered a plasma if I ...
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### Why Debye shielding occur in plasma?

Why Debye shielding occur in plasma when we introduce a test charge? Does Debye shielding depends on test charge When it is introduced in plasma?
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### Physical meaning of Debye length

In plasma physics, what Debye length should represent in practice? From what I understood it's the maximum characteristic distance within which separate charges can be present in the internal space ...
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