True vacuums with no energy at all inside

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Discussion Overview

The discussion revolves around the concept of a "true vacuum," specifically an area devoid of vacuum energy and virtual particles. Participants explore the implications of such a vacuum on the behavior of light and matter, questioning the nature of vacuum and its properties.

Discussion Character

  • Exploratory
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant questions the behavior of light and matter in a hypothetical true vacuum, suggesting it would be completely empty and asking if there would be any differences in behavior.
  • Another participant references a theory that suggests vacuum is not truly empty due to the presence of vacuum energy and virtual particles, indicating that even an absolute vacuum may not be devoid of energy.
  • A third participant argues that quantum fluctuations are inherent properties of what is termed a "true vacuum," implying that the concept of a perfect vacuum may not align with physical reality.
  • A later reply expresses gratitude for the clarification of terms, indicating that the discussion has aided in understanding the complexities of the topic.

Areas of Agreement / Disagreement

Participants exhibit differing views on the nature of vacuum and its properties, with no consensus reached on the implications of a true vacuum on light and matter behavior.

Contextual Notes

Participants reference various theories and concepts related to vacuum energy and quantum fluctuations, but the discussion remains speculative without definitive conclusions or resolutions.

Meatbot
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What would be the result if you could create an area of true vacuum, in which there is no vacuum energy or virtual particles? It would be completely empty, perfect nothingness. How would light and matter behave if introduced into that area? Any difference?
 
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<ot>I've read somewhere that according to some odd theory vacuum is made up my an onholding conversion ... -> energy -> positron + electron -> energy -> ... Therefore event the absolute Vacuum isn't empty. I'd greaty appreciate if anyone knows where that E -> e+ + e- stuff comes from.</ot>

As regards your question: Light would just behave the way you'd expect it to behave? Why should light in "the perfect vacuum" behave other than light in space?
 
Meatbot said:
What would be the result if you could create an area of true vacuum, in which there is no vacuum energy or virtual particles? It would be completely empty, perfect nothingness. How would light and matter behave if introduced into that area? Any difference?

Quantum fluctuation IS a property of "true vacuum". What you have introduced here is something that we don't have physically and more based on the pedestrian usage of the word "vacuum". So this is like saying "what if, in a tennis match, I hit a volleyball with my hands, and remove the net?". It is no longer a "tennis" game.

Zz.
 
Thanks for mentioning the term.

Edit: That really assist me in understanding some things. Nice...
 

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