Skip to main content

All Questions

6 votes
1 answer
1k views

Virtual particle density in an expanding Universe

As the universe continues to accelerate in its expansion, does the virtual particle density decrease or remain the same throughout spacetime?
Mike R.'s user avatar
  • 127
-1 votes
1 answer
934 views

Universe from nothing? [duplicate]

I just finished the book of Lawrence Krauss "Universe from nothing" and he said that virtual particle can pop to existance from nothing by quantum fluctuations of the field from the vacuum and in the ...
Ionut Andrei's user avatar
2 votes
0 answers
262 views

Hawking radiation at the mouth of Schwarzschild wormholes

I was researching a question for another post and it occurred to me that you might expect to see Hawking radiation at the mouth of wormholes. Given the mechanism of Hawking radiation at the event ...
WillMcLeod's user avatar
4 votes
2 answers
5k views

Is it possible that the Big Bang was caused by virtual particle creation?

As far as I understand, it is understood that throughout the universe there exists, what is known as, a quantum field from which, due to its fluctuations, temporary (pairs of) virtual particles ...
Decent Dabbler's user avatar