Consistent NEC-violation: towards creating a universe in the laboratory
High Energy Physics - Theory
2015-06-15 v2 Cosmology and Nongalactic Astrophysics
General Relativity and Quantum Cosmology
Abstract
Null Energy Condition (NEC) can be violated in a consistent way in models with unconventional kinetic terms, notably, in Galileon theories and their generalizations. We make use of one of these, the scale-invariant kinetic braiding model, to discuss whether a universe can in principle be created by man-made processes. We find that even though the simplest models of this sort can have both healthy Minkowski vacuum and consistent NEC-violating phase, there is an obstruction for creating a universe in a straightforward fashion. To get around this obstruction, we design a more complicated model, and present a scenario for the creation of a universe in the laboratory.
Cite
@article{arxiv.1305.2614,
title = {Consistent NEC-violation: towards creating a universe in the laboratory},
author = {V. A. Rubakov},
journal= {arXiv preprint arXiv:1305.2614},
year = {2015}
}
Comments
Journal version, accepted for publication in Phys. Rev. D. Minor changes