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? $\endgroup$– GhosterCommented Dec 28, 2022 at 0:35
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$\begingroup$ Gravitational waves carry energy. (See Feynman’s sticky bead argument.) If what you suggest were true, we could extract energy from the vacuum. $\endgroup$– GhosterCommented Dec 28, 2022 at 0:39
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$\begingroup$ Is there a natural law that prohibits that? $\endgroup$– EuphorbiumCommented Dec 28, 2022 at 0:51
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1$\begingroup$ 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. $\endgroup$– GhosterCommented Dec 28, 2022 at 1:28
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1$\begingroup$ 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. $\endgroup$– GhosterCommented 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.
answered Dec 28, 2022 at 3:46