Rolling Closed String Tachyons and the Big Crunch

Details Rolling Closed String Tachyons and the Big Crunch Rolling Closed String Tachyons and the Big Crunch

2005-06-09

arxiv.org/abs/hep-th/0506076v2

JHEP 0508:046,2005

Physics

High Energy Physics

High Energy Physics - Theory

13 pages, 2 figures, LaTeX. Replaced version: one reference added

Scientific paper

10.1088/1126-6708/2005/08/046

We study the low-energy effective field equations that couple gravity, the dilaton, and the bulk closed string tachyon of bosonic closed string theory. We establish that whenever the tachyon induces the rolling process, the string metric remains fixed while the dilaton rolls to strong coupling. For negative definite potentials we show that this results in an Einstein metric that crunches the universe in finite time. This behavior is shown to be rather generic even if the potentials are not negative definite. The solutions are reminiscent of those in the collapse stage of a cyclic universe cosmology where scalar field potentials with negative energies play a central role.

Affiliated with

Also associated with

No associations

Rating

Rolling Closed String Tachyons and the Big Crunch 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 Rolling Closed String Tachyons and the Big Crunch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rolling Closed String Tachyons and the Big Crunch will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-730186