The cosmological constant in the brane world of string theory on $S^{1}/Z_{2}$

Physics – High Energy Physics – High Energy Physics - Theory

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Add two new figures, and some typos are corrected. Version to appear in Physics Letters B

Scientific paper

10.1016/j.physletb.2008.09.044

Orbifold branes in string theory are investigated, and the general field equations on the branes are given explicitly for type II and heterotic string. It is shown that the effective cosmological constant on each of the two branes can be easily lowered to its current observational value, using large extra dimensions. This is also true for type I string. The radion stability is studied by using the Goldberger-Wise mechanism, and shown explicitly that it is stable. Therefore, brane world of string theory provides a viable and built-in mechanism for solving the long-standing cosmological constant problem. Applying the formulas to cosmology, we obtain the generalized Friedmann equations on each of the two branes.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

The cosmological constant in the brane world of string theory on $S^{1}/Z_{2}$ does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The cosmological constant in the brane world of string theory on $S^{1}/Z_{2}$, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The cosmological constant in the brane world of string theory on $S^{1}/Z_{2}$ will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-36463

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.