[Manal]

No one says during the big bang, there had only one matter created throughout the process.

And about vacuum, I think we better refer to vacuum fluctuation, which is the current topic we all should be talking about.

Source.

I was talking about the pre-bang scenario. Of course, many particles/matter came into existence which included matter, antimatter and etc post big bang.

We started the thread as "Quantum fluctuation", not "Vaccum fluctuation" so I think we'd better stick with the word "Quantum". But it doesn't matter either way because it is the same, isn't it?