I Are vacuum energy and vacuum fluctuations the same thing?

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Vacuum energy and vacuum fluctuations are closely related concepts in quantum physics, but they are not the same. Vacuum energy refers to the energy present in empty space due to quantum fluctuations, while vacuum fluctuations are the temporary changes in energy that occur in a vacuum, leading to the creation and annihilation of virtual particles. The relationship between the two suggests that vacuum fluctuations can be seen as a manifestation of vacuum energy. Understanding this connection is crucial for grasping concepts in quantum field theory and cosmology. Further exploration of these topics can be found in the linked Insights article.
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what is the relationship between vacuum energy and vacuum fluctuation
are vacuum energy and vacuum fluctuations the same thing or is one the the consequence of the other, I understand they are related in some way but I don't know how.
 
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Thread 'The Power of QM and QFT'

We often see discussions about what QM and QFT mean, but hardly anything on just how fundamental they are to much of physics. To rectify that, see the following; https://www.cambridge.org/engage/api-gateway/coe/assets/orp/resource/item/66a6a6005101a2ffa86cdd48/original/a-derivation-of-maxwell-s-equations-from-first-principles.pdf 'Somewhat magically, if one then applies local gauge invariance to the Dirac Lagrangian, a field appears, and from this field it is possible to derive Maxwell’s...
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