What is the energy of virtual particles in a vacuum?

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Discussion Overview

The discussion revolves around the concept of virtual particles in a vacuum, specifically focusing on the energy associated with these particles and the implications of the uncertainty principle. Participants explore theoretical aspects and the interpretation of quantum mechanics regarding vacuum energy.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • One participant expresses confusion about the energy of virtual particles in a vacuum and questions how much energy exists in a specific area (1 cm²).
  • Another participant challenges the existence of virtual particles, stating that the uncertainty principle does not predict their existence and emphasizes that absolute energy values are meaningless in quantum mechanics.
  • There is a mention that while quantum mechanics does not provide a prediction for vacuum energy, the situation may change when considering gravity, although a complete quantum theory of gravity is not available.

Areas of Agreement / Disagreement

Participants exhibit disagreement regarding the existence of virtual particles and the interpretation of the uncertainty principle. The discussion remains unresolved with competing views on the topic.

Contextual Notes

Limitations include the lack of consensus on the existence of virtual particles and the implications of vacuum energy, as well as the dependence on interpretations of quantum mechanics and gravity.

sirios
Hello everyone, I am here today with a doubt, I first apologize for my ignorance on the subject, but come on, the uncertainty principle predicts that in the "vacuum" there are virtual particle that cancels out constantly, but my question is: which is the amount of energy that exists in this vacuum in 1 cm ^ 2? the second question, and simpler: why does it happen? or quantum mechanics can not explain, again sorry for my ignorance.
 
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sirios said:
the uncertainty principle predicts that in the "vacuum" there are virtual particle that cancels out constantly
No it does not. Virtual particles do not exist. See phind's links for details.
sirios said:
which is the amount of energy that exists in this vacuum in 1 cm ^ 2?
1 cm3? Quantum mechanics doesn't make a prediction for that, it doesn't matter in quantum mechanics either (because absolute energy values are meaningless, only differences are important). This changes if you want to include gravity, but we don't have a full quantum theory of gravity.
 
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