k-stabilization in brane models
Abstract
Description
Stabilization of inter-brane distance is analyzed in 5-dimensional models with higher-order scalar kinetic terms. Equations of motion and boundary conditions for background and for scalar perturbations are presented. Conditions sufficient and (with one exception) necessary for stability are derived and discussed. It is shown that it is possible to construct stable brane configurations even without scalar potentials and cosmological constants. As a byproduct we identify a large class of non-standard boundary conditions for which the Sturm-Liouville operator is hermitian.
23 pages, subsection on self-adjoint Sturm-Liouville eigenvalue problems added, references added, version to be published
23 pages, subsection on self-adjoint Sturm-Liouville eigenvalue problems added, references added, version to be published