Tachyon Effective Dynamics and de Sitter Vacua

Details Tachyon Effective Dynamics and de Sitter Vacua Tachyon Effective Dynamics and de Sitter Vacua

2004-03-22

arxiv.org/abs/hep-th/0403217v2

Phys.Rev. D70 (2004) 066002

Physics

High Energy Physics

High Energy Physics - Theory

28 pages, 1 eps figure. Uses graphicx, setspace. v2:corrected typos, added references, clarified discussion on backreaction

Scientific paper

10.1103/PhysRevD.70.066002

We show that the DBI action for the singlet sector of the tachyon in two-dimensional string theory has a SL(2,R) symmetry, a real-time counterpart of the ground ring. The action can be rewritten as that of point particles moving in a de Sitter space, whose coordinates are given by the value of the eigenvalue and time. The symmetry then manifests as the isometry group of de Sitter space in two dimensions. We use this fact to write the collective field theory for a large number of branes, which has a natural interpretation as a fermion field in this de Sitter space. After spending some time building geometrical insight on facts about the condensation process, the state corresponding to a sD-brane is identified and standard results in quantum field theory in curved space-time are used to compute the backreaction of the thermal background.

Affiliated with

Also associated with

No associations

Rating

Tachyon Effective Dynamics and de Sitter Vacua 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 Tachyon Effective Dynamics and de Sitter Vacua, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tachyon Effective Dynamics and de Sitter Vacua will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-701634