Publication Date
2013
Journal or Book Title
Physical Review D
Abstract
We consider Lorentzian wormholes with a phantom field and chiral matter fields. The chiral fields are described by the non linear sigma model with or without a Skyrme term. When the gravitational coupling of the chiral fields is increased, the wormhole geometry changes. The single throat is replaced by a double throat with a belly inbetween. For a maximal value of the coupling, the radii of both throats reach zero. Then the interior part pinches off, leaving a closed universe and two (asympotically) flat spaces. A stability analysis shows that all wormholes threaded by chiral fields inherit the instability of the Ellis wormhole.
Pages
14
Recommended Citation
Charalampidis, Efstathios; Ioannidou, Theodora; Kleihaus, Burkhard; and Kunz, Jutta, "Wormholes Threaded by Chiral Fields" (2013). Physical Review D. 1263.
Retrieved from https://scholarworks.umass.edu/math_faculty_pubs/1263
Comments
This is harvested from arXiv. The published version is located at http://arxiv.org/pdf/1302.5560v1.pdf.