Virtuals particles, vacuum and infinite energy

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Discussion Overview

The discussion revolves around the nature of virtual particles, their relationship with vacuum states, and implications for the concept of infinite matter. Participants explore theoretical aspects of virtual particles, their potential to become real under certain conditions, and the implications of vacuum energy, particularly in the context of the Casimir effect.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation

Main Points Raised

  • Some participants assert that virtual particles can appear anywhere and may turn into real particles if they have enough energy.
  • Others argue against the idea that virtual particles can become real, stating that such occurrences do not happen, thus questioning the validity of related inquiries.
  • There is a discussion about the implications of the Casimir effect, where a measurable force between metallic plates is interpreted through quantum vacuum fluctuations, suggesting that vacuum energy can have real effects.
  • One participant requests credible references when making assertions about virtual particles, emphasizing the need for scientific rigor in discussions.
  • Another participant challenges the notion that vacuum energy cannot be real, asking for elaboration on this point in light of the Casimir effect.

Areas of Agreement / Disagreement

Participants express differing views on the nature and implications of virtual particles, with no consensus reached on whether they can become real or the nature of vacuum energy. The discussion remains unresolved with competing perspectives presented.

Contextual Notes

Some claims rely on specific interpretations of quantum mechanics and the Casimir effect, which may depend on definitions and assumptions about vacuum states and energy. The discussion does not resolve the mathematical or conceptual uncertainties surrounding these topics.

Donut
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Hi guys I have a question for you. Virtual particles can appear anywhere and when they have enough energy they turn into real. And if it happens long enough in a vacuum, will it remain a vacuum? If not, then is matter infinite?
 
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Donut said:
Hi guys I have a question for you. Virtual particles can appear anywhere and when they have enough energy they turn into real.
No, they don't
Donut said:
And if it happens long enough in a vacuum, will it remain a vacuum?
Since it doesn't happen that question makes no sense
Donut said:
If not, then is matter infinite?
If the universe is infinite, then matter is infinite, but not having anything to do with virtual particles

https://www.physicsforums.com/insights/misconceptions-virtual-particles/
https://www.physicsforums.com/insights/physics-virtual-particles/
 
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Donut said:
Virtual particles can appear anywhere and when they have enough energy they turn into real.
Please post reference links when making assertions like this at PF. Please make sure that the references are to credible scientific articles and not "Pop-Sci" articles. Thanks.
 
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phinds said:
No, they don't

In the Casimir effect, a force is actually measured between the two metallic plates. This was physically interpreted based on quantum vacuum fluctuations. By removing wavelength beyond a threshold the virtual particles allowed energy is constrained between the plates. Thus the observed pressure in the Casimir effect, would come from a lower vacuum energy density between the plates than outside.

Now the question is the following: if the Casimir force is real, then it could generate some work at maximum dW=F*dl (l is the distance between plates). So, can you elaborate on the fact that vacuum energy cannot be real.
 
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The Insights article links in post #5 are a sufficient response. Thread closed.
 
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