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Would virtual particles popping in and out be causing gravitational waves? Probably need quantum gravity for that, but maybe there is some theories.

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  • $\begingroup$ Are vacuum fluctuations really happening all the time? $\endgroup$
    – Ghoster
    Dec 28, 2022 at 0:35
  • $\begingroup$ Gravitational waves carry energy. (See Feynman’s sticky bead argument.) If what you suggest were true, we could extract energy from the vacuum. $\endgroup$
    – Ghoster
    Dec 28, 2022 at 0:39
  • $\begingroup$ Is there a natural law that prohibits that? $\endgroup$
    – Euphorbium
    Dec 28, 2022 at 0:51
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    $\begingroup$ The real issue is that virtual particles are not “popping in and out”. The vacuum state is a stationary state. The entire premise of your question is false. $\endgroup$
    – Ghoster
    Dec 28, 2022 at 1:28
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    $\begingroup$ Please read Yes, Stephen Hawking Lied To Us All About How Black Holes Decay for a popular account of why your image of Hawking radiation is wrong. I’m going to stop now. $\endgroup$
    – Ghoster
    Dec 28, 2022 at 1:42

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Gravitational waves would be made of real gravitons, not virtual ones, just as electromagnetic waves are made of real photons.

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