
#1
Nov2212, 10:00 AM

P: 12

In brane cosmology how can there be no such thing as inflation. I was watching a lecture with Neil Turok and he said he made a bet with Hawking that says that the new Planck satellite will give us information that could prove against inflation. So, my question being, instead of inflation in the brane cosmological model is it just dark energy being the driving force of the expansion of the universe?




#2
Nov2212, 06:01 PM

Sci Advisor
PF Gold
P: 9,183

The brane cosmology models I am aware of admit to inflation in some form of another. Few cosmological models, brane or otherwise, get by without inflation. Did you have a particular model in mind?




#3
Nov2212, 06:40 PM

P: 12

I really just would like to read more about the subject. If anyone can refer me to something it would be greatly appreciated.




#4
Nov2212, 08:00 PM

Sci Advisor
PF Gold
P: 9,183

Brane cosmology
Here is a place to start  Introductory review of cosmic inflation http://arxiv.org/abs/hepph/0304257




#5
Nov2312, 05:04 AM

P: 439

As I understand the model popsed by Niel Toruk is not the only comsological model that deals with branes. There are others, some of which include inflation , I believe the term "brane inflation" is employed. Here is an exmaple
http://arxiv.org/abs/hepth/0610221 If you would like to read more about the brane clash model, you can read this layman book: http://www.amazon.co.uk/EndlessUniv.../dp/0385509642 Its a really great book even if you hate the brane clash model. It explains inflation very very well ands gives an insiders view of some recent history of cosmology. Just a really really good read. As far as Turoks bet with Hawking. It seems Hawking likes throwing money away on bets. Im sure hes got more than any of his fellows so I doubt he cares. Turok bet him that Planck wont find the B mode polarisation which is often called a smoking gun for inflation.Well Ive met a few people that work on Planck and they are clear its not designed to find the B mode , that would most likely take a new generation of space probe like EPIC or CORE. If Planck is very lucky it will find it, but its not likley. I dont think that says much about inflation version the brane clash model, but Turok made a pretty smart bet and Hawking's got more money so he likley doesnt mind going out on a limb and taking a gamble. I hope Hawking wins becuase thhat will be major disocvery but my monies on Turok. 



#6
Nov2312, 06:18 AM

P: 122

http://arxiv.org/abs/hepth/0610221
If you would like to read more about the brane clash model, you can read this layman book: http://www.amazon.co.uk/EndlessUniv.../dp/0385509642 Its a really great book even if you hate the brane clash model. It explains inflation very very well ands gives an insiders view of some recent history of cosmology. Just a really really good read. So it is still the best model we have? Any latest feed on decoherance problem in ekpyrotic phase of cyclic model. 


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