What is the relationship between the Casimir force and the strong nuclear force?

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Discussion Overview

The discussion explores the relationship between the Casimir force and the strong nuclear force, questioning whether they share similar underlying mechanisms or are fundamentally different phenomena. Participants examine concepts related to quantum mechanics, virtual particles, and the nature of forces at play in quantum fields.

Discussion Character

  • Debate/contested
  • Conceptual clarification
  • Technical explanation

Main Points Raised

  • Some participants propose that the Casimir force arises from a pressure difference in the quantum foam acting on two plates.
  • Others argue that the strong nuclear force is fundamentally different from the Casimir force and does not relate to the same mechanisms.
  • One participant questions whether the strong nuclear force could be understood as a lack of virtual particle production between quarks.
  • Another participant challenges the relevance of the concept of "quantum foam," suggesting it is not a useful framework for understanding these forces.
  • Some contributions assert that virtual particles do not exist and that the Casimir effect is often misunderstood in relation to the quantum vacuum.
  • A participant mentions that the distinction between Van der Waals forces and the Casimir effect may be more about scale than about being entirely different effects.

Areas of Agreement / Disagreement

Participants express differing views on the relationship between the Casimir force and the strong nuclear force, with no consensus reached. Some participants maintain that they are distinct, while others explore potential connections.

Contextual Notes

There are unresolved assumptions regarding the nature of virtual particles and the interpretation of quantum mechanics as it relates to these forces. The discussion also touches on the scale at which different forces operate, which remains a point of contention.

nebulacollector
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nebulacollector said:
The Casimir force is simply a pressure difference in the quantum foam exerting a force upon two plates
I don't think "quantum foam" is a useful concept here.
nebulacollector said:
but is the strong nuclear force the same thing?
No, it is a completely different thing. It has nothing to do with the Casimir force.
 
How so? Is it not simply a lack of virtual particle production between quarks?
 
And the quantum foam refers to the quantum chaos of virtual particle production in every point in space it couldn't be more relevant, if you're going to say I'm wrong all day long then help me understand how and provide some useful insight
 
nebulacollector said:
How so? Is it not simply a lack of virtual particle production between quarks?

Virtual particles do not exist.

The Casmir effect doesn't really have anything to do with the quantum vacuum either:
http://arxiv.org/abs/hep-th/0503158v1

Its a myth - although a very common one even in professional literature.

Its one of a number of very common myths about QM:
http://arxiv.org/pdf/quant-ph/0609163.pdf

Thanks
Bill
 
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nebulacollector said:
And the quantum foam refers to the quantum chaos of virtual particle production in every point in space it couldn't be more relevant, if you're going to say I'm wrong all day long then help me understand how and provide some useful insight

As I said even though its a common misconception virtual particles do not exist - they are simply a name given to the pictorial representation of a Dyson series in a Feynman Diagram. You will find many threads discussing it so no need to go into it here.

Thanks
Bill
 
What pushes the two plates together?
 
nebulacollector said:
What pushes the two plates together?

Did you read the link?

Thanks
Bill
 
You probably are familiar with the idea of atoms in a solid or liquid sharing valence electrons. This situation results in a lower energy than not sharing and keeps the structure together. As you bring the two plates closer together what do you imagine might be happening?
 
  • #10
The distinction between Van der Waals forces and the Casimir effect has more to do with scale than anything else. They may be considered as two limits of a spectrum rather than as totally different effects. Relativistic retardation comes into play at greater distances.
 

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