Phys. Rev. D 78, 084036 (2008) [10 pages]k-stabilization in brane modelsReceived 28 August 2008; published 27 October 2008 Stabilization of interbrane distance is analyzed in five-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 by-product we identify a large class of nonstandard boundary conditions for which the Sturm-Liouville operator is Hermitian. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.78.084036
DOI:
10.1103/PhysRevD.78.084036
PACS:
04.50.−h, 11.10.Kk
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