Phys. Rev. D 72, 064008 (2005) [9 pages]Need of dark energy for dynamical compactification of extra dimensions on the braneReceived 21 July 2005; published 14 September 2005 We consider a six-dimensional braneworld model and we study the cosmological evolution of a (4+1) brane-universe. Introducing matter on the brane we show that the scale factor of the physical three-dimensional brane-universe is related to the scale factor of the fourth dimension on the brane, and the suppression of the extra dimension compared to the three dimensions requires the presence of dark energy. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.72.064008
DOI:
10.1103/PhysRevD.72.064008
PACS:
04.50.+h, 11.10.Kk, 98.80.Jk, 97.60.Lf
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.