Could the gravitational waves the consequence of the collision between a true vacuum bubble and a false vacuum bubble, at the beginning of the universe?

(as they try to explain there: https://www.futura-sciences.com/sciences/actualites/univers-cosmologie-pourra-t-on-voir-naissance-masse-particules-52505/)

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    $\begingroup$ the gravitationnal waves Are you talking about the ones that LIGO detects? $\endgroup$ – G. Smith Mar 6 at 20:50
  • $\begingroup$ I am talking about any gravitational wave. Not necessary those of LIGO/Virgo. $\endgroup$ – Mathieu Krisztian Mar 7 at 7:50
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    $\begingroup$ What is a false vacuum bubble? (This question might be answered in the reference you cited, but I don't read French.) I did find the following: medium.com/the-infinite-universe/…. What I do not understand is what this concept has to do with gravitational waves. $\endgroup$ – Buzz Mar 16 at 15:50

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