K fields, compactons, and thick branes

Details K fields, compactons, and thick branes K fields, compactons, and thick branes

2007-11-22

arxiv.org/abs/0711.3550v2

J.Phys.A41:212004,2008

Physics

High Energy Physics

High Energy Physics - Theory

some references and further remarks added

Scientific paper

10.1088/1751-8113/41/21/212004

K fields, that is, fields with a non-standard kinetic term, allow for soliton solutions with compact support, i.e., compactons. Compactons in 1+1 dimensions may give rise to topological defects of the domain wall type and with finite thickness in higher dimensions. Here we demonstrate that, for an appropriately chosen kinetic term, propagation of linear perturbations is completely suppressed outside the topological defect, confining the propagation of particles inside the domain wall. On the other hand, inside the topological defect the propagation of linear perturbations is of the standard type, in spite of the non-standard kinetic term. Consequently, this compacton domain wall may act like a brane of finite thickness which is embedded in a higher dimensional space, but to which matter fields are constrained. In addition, we find strong indications that, when gravity is taken into account, location of gravity in the sense of Randall--Sundrum works for these compacton domain walls. When seen from the bulk, these finite thickness branes, in fact, cannot be distinguished from infinitely thin branes.

Affiliated with

Also associated with

No associations

Rating

K fields, compactons, and thick branes 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 K fields, compactons, and thick branes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and K fields, compactons, and thick branes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-310662