Timeline for Is Pauli-repulsion a "force" that is completely separate from the 4 fundamental forces?
Current License: CC BY-SA 4.0
12 events
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| S Sep 7, 2021 at 14:57 | history | suggested | Asmit Karmakar | CC BY-SA 4.0 |
corrected spelling, fixed grammar, improved formatting
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| Sep 7, 2021 at 14:27 | review | Suggested edits | |||
| S Sep 7, 2021 at 14:57 | |||||
| Dec 27, 2016 at 0:22 | comment | added | Selene Routley | ... the force, which it is (without the PEP it wouldn't be so high), but not by being a fundamental interation but rather by being a part of the equation of state. | |
| Dec 27, 2016 at 0:20 | comment | added | Selene Routley | @JDługosz well yes, but the question is whether the PEP is a separate fundamental force. An I'm saying that no it isn't - the apparent "force" is a very familiar effect that you can understand in thinking about very simple things like an ideal gas. The PEP is part of the details that define the size of that force - like a boundary condition. That's the essential insight that I certainly found myself forgetting when pondering - for example - the degeneracy pressure of a star. I guess the name "degeneracy pressure" itself skews ones thinking because the name implies the PEP is "making" .... | |
| Dec 27, 2016 at 0:15 | comment | added | JDługosz | As written, it seems to describe ordinary pressure in a non-ideal gas, and furthermore implies that the hard-contact bouncing is due to electromagnetism but that’s circular. | |
| Dec 27, 2016 at 0:07 | comment | added | Selene Routley | .... particularly demanding of confining force. | |
| Dec 27, 2016 at 0:05 | comment | added | Selene Routley | @JDługosz Actually, that's kind of the point, in a way. As I discuss, the principles of the answer hold for both bosons and fermions: the "force" that needs confining by an applied force (or a gravitational well) is not a fundamental interaction. Rather, the applied force is simply changing the dynamics of the system, and the exclusion principle (as well as much else) sets the equation of state that determines the amount of force you will need to disturb the dynamics. It's the same principle for an ideal gas, a gas of bosons or a gas of fermions - the PEP just makes the last case .... | |
| Dec 26, 2016 at 6:02 | comment | added | JDługosz | Ok, you show charged particles can bounce off each other using electric repulsion. But that has nothing to do with Paili Exclusion, or explain why neutral atoms seem to have a hard-contact size like little balls. | |
| Oct 7, 2013 at 1:26 | history | edited | Selene Routley | CC BY-SA 3.0 |
Grammar
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| Oct 7, 2013 at 1:13 | history | edited | Selene Routley | CC BY-SA 3.0 |
added 155 characters in body
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| Oct 7, 2013 at 1:06 | history | edited | Selene Routley | CC BY-SA 3.0 |
Added star core diagram
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| Oct 6, 2013 at 22:26 | history | answered | Selene Routley | CC BY-SA 3.0 |