Rotating kinky braneworlds

Niedermann, Florian; Saffin, Paul M.

Abstract

Cylindrical braneworlds have been used in the literature as a convenient way to resolve co-dimension-two branes. They are prevented from collapsing by a massless worldvolume field with non-trivial winding, but here we discuss another way of preventing collapse, which is to rotate the brane. We use a simple microscopic field theory model of a domain wall with a condensate for which rotation is a necessity, not just a nice added extra. This is due to a splitting instability, whereby the effective potential trapping the condensate is not strong enough to hold it on the defect in the presence of winding without charge. We use analytic defect solutions in the field theory (kinky vortons) to construct a thin-wall braneworld model by including gravitational dynamics, and we allow for the rotation required by the microscopic theory. We then discuss the impact rotation has on the bulk and brane geometry, thereby providing an anchor for further cosmological investigations. Our setup naturally leads to worldvolume fields living at slightly different radii, and we speculate on the consequences of this in regard to the fermion mass-hierarchy.

Citation

Niedermann, F., & Saffin, P. M. (2018). Rotating kinky braneworlds. Journal of High Energy Physics, 2018(7), Article 183. https://doi.org/10.1007/jhep07%282018%29183

• Journal Article Type: Article
• Acceptance Date: Jul 23, 2018
• Online Publication Date: Jul 31, 2018
• Publication Date: Jul 31, 2018
• Deposit Date: Aug 3, 2018
• Publicly Available Date: Aug 3, 2018
• Journal: Journal of High Energy Physics
• Electronic ISSN: 1029-8479
• Publisher: Springer Verlag
• Peer Reviewed: Peer Reviewed
• Volume: 2018
• Issue: 7
• Article Number: 183
• DOI: https://doi.org/10.1007/jhep07%282018%29183
• Keywords: Effective Field Theories; Field Theories in Higher Dimensions; p-branes; Topological Field Theories
• Public URL: https://nottingham-repository.worktribe.com/output/926224