1123581321 Posted May 7, 2010 Share Posted May 7, 2010 Hi, I was wondering how a brane could expand to universal proportions, because wouldn't there be dissipation of some sort, stretching and instability. Link to comment Share on other sites More sharing options...
toastywombel Posted May 8, 2010 Share Posted May 8, 2010 Good question, I found this article, http://iopscience.iop.org/1126-6708/2003/12/012/pdf/1126-6708_2003_12_012.pdf It is a pdf so you will have to download it. Essentially though, the important part that answers your question, is that multiple p-branes may exist in a given M5-brane (a intertwined sea of multiple p-branes). A brane's energy is proportional to the inverse of its volume. So, whether the branes are compact or expanded, the result of an expanding universe in such a scenario is the same. An expanding universe will eventually end as a compacting universe. Of course there may be conflicting articles out there, M-theory like all string theories are relatively young, with varying interpretations. Link to comment Share on other sites More sharing options...
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