- #71
bhobba
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Shayan.J said:But as far as I know BICEP2's results were refuted, weren't they?
Sorry don't know that one.
Shayan.J said:And aside from that, I don't understand this statement. When we do QFT, we put it on a background spacetime. How can a QFT explain the emergence of its background?
Not the false vacuum - and obviously so because it represents the birth of space-time. You don't have to interpret the parameters as anything - just some parameters.
But its not the only approach to emergent space-time eg string theory:
http://physics.stackexchange.com/qu...me-is-not-fundamental-but-should-be-considere
Again I am not expert. I am surprised its in anyway controversial though - from my perspective it's just general knowledge.
Thanks
Bill