Questions about quantum cosmology

[kodama]

TL;DR

questions

what is the current status of the field for quantum cosmology, are there any observations that support any theory of quantum cosmology?

is it just cosmology during the Planck era or does it extend past the Planck era.

what are the leading candidates into research into quantum cosmology and which physics departments research it?

how much respect does loop quantum cosmology has compared to string cosmology with actual cosmologists?

 

[sbrothy]

Since this question is a day old and noone answered you’re gonna get a hack answer:

It’s a diverse field. There’s as you you’ve ascertained LQC. Also Alain Conne’s Noncmmutative geometry, casual dynamical triangulation, twister theory, asymptotic safety and a couple of others. Penrose and Woit seems to be going with the twister idea.

All this is way over my head though, so maybe someone who knows what they’re talking about would like to comment…?

 

[sbrothy]

As far as observations and experiments go I think it’s pretty barren. It’s simply too high energy to probe. LIGO/VIRGO may be the closest yet.

EDIT: But again: I’m just a hack.

 

[sbrothy]

Oh and just for the record. I realize you asked about quantum cosmology but I implicitly took that to mean quantum gravity.

As I said, I’m just a hack.

 

[pinball1970]

https://arxiv.org/list/gr-qc/recent

As per @sbrothy well above my pay grade.

 

[kodama]

so any cosmologists here can explain the status of quantum cosmology, and its leading candidates?

 

[sbrothy]

I don't want to be a p.... about it but have you tried to consult Wikipedia or the link @pinball1970 gave you?

 

[PeterDonis]

Thread closed for moderation.

 

[PeterDonis]

what is the current status of the field for quantum cosmology

It's a very new and speculative field.

are there any observations that support any theory of quantum cosmology?

No.

is it just cosmology during the Planck era or does it extend past the Planck era.

It's too early to tell.

what are the leading candidates into research into quantum cosmology and which physics departments research it?

This is a question you'll need to answer by looking at the literature.

how much respect does loop quantum cosmology has compared to string cosmology with actual cosmologists?

This is not a physics question and can't be answered usefully here. Physics is not about "respect", it's about testing predictions of models against data. Since, as above, that can't be usefully done at this point with quantum cosmology, anything anyone says is speculative.

And with that, this thread will remain closed.