Brane-like singularities with no brane

Details Brane-like singularities with no brane Brane-like singularities with no brane

2009-05-09

arxiv.org/abs/0905.1393v4

Phys.Lett.B689:1-7,2010

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

revised version, 7 pages, RevTex

Scientific paper

10.1016/j.physletb.2010.04.038

We use a method of linearization to study the emergence of the future cosmological singularity characterized by finite value of the cosmological radius. We uncover such singularities that keep Hubble parameter finite while making all higher derivatives of the scale factor (starting out from the $\ddot a$) diverge as the cosmological singularity is approached. Since such singularities has been obtained before in the brane world model we name them the "brane-like" singularities. These singularities can occur during the expanding phase in usual Friedmann universe filled with both a self-acting, minimally coupled scalar field and a homogeneous tachyon field. We discover a new type of finite-time, future singularity which is different from type I-IV cosmological singularities in that it has the scale factor, pressure and density finite and nonzero. The generalization of $w$-singularity is obtained as well.

Affiliated with

Also associated with

No associations

Rating

Brane-like singularities with no brane 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 Brane-like singularities with no brane, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Brane-like singularities with no brane will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-688933